muddiest point

Okay im looking through the blog and i dont see my post or comment so ill just post it again....

My muddiest point is the diffusion in the blood stream, im still conused by that

muddiest point

REFLEX ARC anyone??? i dont get how it works!

My Muddiest Point

My muddiest point this unit is the difference between an artery and a vein. Thanks!

Muddiest Ponittt

Hi everybody! How you derin? :) My muddiest point is which way does blood travel in the heart???????? Thanks

mudddddy

Hi everyone! It's Tessa N here. I'm confused on what the reflex arc is... can anyone explain it?

muddier point

the thing i find confusing about this is the circulatory system and all the different ways things get around. also what we have to know what is carried through the system

MOODIEST POINT :X

my muddiest point is the reflex arc and everything about it and then the circulation of the blood in the heart (oxygen rich and oxygen poor)

Muddiest Point

hey guys, my muddiest point is what does the motor neuron do and what does the sensory neuron do?

muddiest point

My muddiest point is how the reflex arc works


-Riaz

Mud point -(Unit 11: The amazing human body)-

 Hi! It's Eunice C!!^^ My mud points for this unit is the circulatory and nervous systems. (I have 2 questions...)

So for circulatory system, what exactly is systolic and diastolic pressure?? Also for nervous system, what is the difference between resting potential and action potential? What happens? 

THANKS.

-Eunice Chang

Can't Wrap My Brain Around This!

Hey! It's Kara S. and I can't wrap my brain around this:what's are End Brush Motor, and Muscle Effector functions? Thanks!

Muddiest Point

Hey people, my muddiest point is.......what is the cerebral 


cortex responsible for?

muddiest Point

Hey, its jarod. i got one one question. what dose the myelin sheath do again?






JarodL, Muddiest Point, Human Body

Muddiest Point

hey guys so i was wondering if anyone could explain who can give blood to who and why??

Muddiest Point!

Hey guys! so my muddiest point is what is an EEG (electroencephalogram)? Thanks!

Muddiest point

Hey, guys. Heidi, here! I was wondering what the veins, arteries, and valves in the heart do. Thanks!

Our Little Libby!

Muddiest Point!

Hi, it's Ben! I understand everything except what a vein it on a leaf! I can't figure it out!

muddy point

The only thing I don't get is what the polar nuclei is and it would be cool if you could help.

Muddiest point!

Hey guys! Heidi, here. I was wondering what gymnosperms are and what the stoma or stomata or whatever its called does and what they are. HELP!!

My Muddiest Point!

What is a polar nuclei and what is its function in a plant?

Muddiest point

I dont understand the differences between all the types of plants.

point that's mudddddy

My muddiest point is........what's a granum again?

Muddiest point. :/

What are the difference between vascular and non vascular plants?

Muddy point!!

Hey yall so what is the roll of root hairs what do they do???

PITTY!!

also ive been having a super hard time with this blog and getting posts up. i know im missing a muddiest point somewhere so i thought id try to make it up with some of my cool plant facts!!

- a gash in a tree will stay the same distance from the ground as it grows taller

- almost 200,000 pencils can be made from an average sized tree

- one tree makes about 260 pounds of oxygen annually, which is enough to supply for a family of 4

Muddiest Point :(

sooo my muddiest point is the difference between ANGIOSPERMS and GYMNOSPERMS

point thats muddy, lets clean it upp

ok what is angiosperm?? is there anything that goes with it or types or something im so confused.

thanks :)

muddiest point!

hi so my mudiest point is what is the importance of cross vs. self pollenation. Thanks!

Muddy Point

Hey! It's Kara S. I really don't understand polar nuclei and the functions of the parts of a flower!

Muddiest Point

Hi guys, it's Eunice L.
For my muddiest point, I'm confused about what the function of root hairs are. How do they help the root?

A Point thats Muddy

Hey, its Mark I'm still a bit confused on what surrounds the Xylem and the Phloem what is its exact name,and does it have a different name when in the root vs. the leaf or stem.

stuck in the mud.

hay guys it's TessaN. does anyone have a good way to remember the vascular bundles of monocots and dicots? Which one is spread out and which one has the bundles in a circle?

SCRIBE!

Hey guys! It's Tessa N heree. So today in class we found out that FRIDAY is Mrs. Steins last day! :'( but... we are gonna have a baby showerr party! So don't forgett to bring food... Haha anyways we started off by going over the plant of the day, the string of pearls, also known as senecio rowleyan. Then we continued to review transportation, roots, and monocots vs. dicots. Transportation is the process by which water moves up a plant and out of a leaf. We learned the structure of roots, such as the cortex, stores food. Monocots and dicots both have vascular bundles, however the way they are arranged is different. Monocots have parallel leaves, 1 cotyledon, multiples of three flowers, and have fibrous, multiple roots. Dicots have branched leaves, 2 cotyledon, multiples of four or five flowers, and have a taproot, or a big main root. We then ended class by working on our flower labs for the last 15 minutes.

My Muddiest Point

Hey guys, it's Maggie! My muddiest point this unit is what the functions of the xylem and phloem are. Thank you!

muddy chlorphyll

My muddiest point is the balanced equation for photosynthesis how do you do it.

Muddiest Point

Hey its catie here! my muddiest point is this: im still confused by the whole pigment thing...i know chlorophyll is nessecary for photosynthesis...but how does it 'absorb' other pigments? help please!

MUDDIE POINTTTT

my muddie point for this unit is the life cycle of angiosperms

Muddy point!!! Unit 9: Attack of the weird plants @_@

My muddy point from this unit 9 was, how does a chlorophyll molecule absorb and reflect different wavelengths of light on the visible spectrum??

Someone help me!!

-Eunice Chang

SCRRIBBEEE!

Hey guys!

SO, yesterday we learned about the SPIDER PLANT. Pretty much looks like a normal green plant, but with little spidery-looking things at the end of the leaf. After that, we review a tiny bit before our photosynthesis and leaf quiz! yay. quizzes. Once we finished that up, we started a lab that dealt with the investigation of plants! Some things like tropisms and monocots and dicots, which we will continue to do on Wednesday and thursday. So yeah thats pretty much it, peace out. Have a lovely rest of the week everyone! :)

Scribe of the day

Hey y'all its catie here!

In class today, we...

-Discussed our pigment labs

-got grade reports

-began the lab on UP 73-76

-& discussed photsynthesis.

We spent a lot of time talking about photosynthesis. REMEMBER, WE HAVE A QUIZ ON IT TOMORROW!

Here's the scoop on photosynthesis:

-It all happens in the CHLORPLAST

-The STROMA is the name for the open space of the chloroplast

-The GRANUM is the 'stack of pancakes'. This is where the Light-Dependant reactions occur

-The 'pancakes' are called Phlatoids, and contain chlorophyll (which is the pigment nessecary to undergo phtosynthesis!

-The 'pancakes' also contain electrons

LIGHT-DEPENDANT reactions:

-Light comes in and hits the electrons, which gets them excited! Their energy level shoots up

-This splits the H20 molecules (which releases oxygen)

-Then, the electrons loose energy to form ATP

-The now split (or lonely) H+ molecule and NADP forms NADPH

-This carries nessecary energy to the CALVIN CYCLE

LIGHT-INDEPENDENT reactions: (a.k.a Calvin cycle)

-C02 is added to a 5 carbon sugar

-Engery from NADPH and ATP are used to carry out reactions

-Produces sugars (glucose!)

-DO NOT call this the 'dark cycle'! BECAUSE IT DOESN'T have to happen in the dark! This cycle doesn't care if its dark or light, it will still happen the same

OKAY BYE

SCRIBE

Hey guys! Heidi, here!

Today in class Mrs. Stein talked about photosynthesis and how we will get into

detail about it tomorrow. We also did a LAB where we had to put its pigment on a

piece of paper and soak it in a certain CHEMICAL. We then took a break and then

we went over the HOMEWORK and after we were done with that we went to check

on our PIGMENTS!!!

If you don't know the homework. ..........SHAME on YOU! but...its to finish the lab (UP 69-72) and to do (if not done already) UP 81-85 or corrnell notes on 8.2 & 8.3

NOW we all know we learned about Moss Balls! & how COOL they are!

SO....... I found a couple videos that show what Moss Balls do!

BUTT! Since my computer doesn't let me do anything for the blog....I'm leaving the link! SO TAKE A LOOKSEE!

Video #1:

http://www.youtube.com/watch?v=3vD6vQsQZEY&feature=endscreen

Video #2:

http://www.youtube.com/watch?v=bHRElGK6cxc&feature=related

video i found about pink wavelengths

I found this video online and its kind of related to what we're learning about with wavelengths, and it shows that there actually isn't any pink light.

http://www.youtube.com/watch?v=S9dqJRyk0YM&feature=player_embedd

SCRIBE--MARCH 7

HEY EVERYONE!! kelly here with the scribe post

so today in class...

• Mrs. Stein stamped our homework homework from last night which was UP 79&80.
• then we talked about the PLANT OF THE DAY which was living stones which are plants that look like rocks so that other animals won't eat them
• we also answered the question on page 61 in the unit packet which was about energy
• later we reviewed the functions of the structures in leaves:

1. upper & lower epidermis- protect everything inside the leaf and prevent tearing
2. cuticle (cutin)- prevents water loss
3. spongy mesophyll/palisade mesophyll- photosynthesis
4. stomate- gas exchange (takes carbon dioxide in, releases oxygen) & releases water (transpiration)
5. vascular tissues (vein)- tranportation

**TONIGHTS HOMEWORK IS UP 67&68**

**8.2 & 8.3 ARE DUE FRIDAY WITH UP 81-85 OR CORNELL NOTES**

SCRIBEEEE

Hello people of 8th period biology! Sooo yesterday we started class with our last two commercial presentations (which were awesome!!!!!!). Then we went to our POD which were a baseball plant, and a venus fly trap. The baseball plant is very interesting because well it looks like a baseball! It grows in the desert, it is the type of plants that absorbs water and stores it (like a juicy steak). The venus fly trap is very cool, it makes a sweet lining of nectar to attract flys. When the fies come over and start eating the nectar the venus fly trap have six hairs, if two are touched with in twenty seconds of the fly landing on it, it automatically closes. After that we took a quiz on our plant reading. Then, we talked about our presentation project!

Muddiest Point for the second time...

Ok....so... I wrote my Muddiest point on Thursday... but obviously it didn't go through because i can't find it! :( Now that I think of it... this has happened to me before already... weird. So I'm just going to write it again.... better late than never! Well, my muddiest point is just the characteristics of the all the invertebrate phylums!

Muddiest point

My muddiest point is figuring out what specie goes to which phylum.

Muddiest POINT!

HELLO! so my muddiest point today is all of the different phylums and their classes!

Muddies Point

Hey guys! my muddiest point today is the difference between the the 3 different groups of fish, and which one is which?

Muddiest Point

Hey yall, my muddiest point is how to define all the classes and their differences.

Thanks,
Riaz

Muddiest point

Hey guys my muddiest point is remembering the different charecteristics of the different phylums. Like i have a hard time distingquising between one phylum and the other. Anyone have a good way to remember?

Muddiest Point

My muddiest point is what animals are made of no matter what backbone, like I'm kinda confused on cartillage and stuff.

muddiest point!

Hi, Heidi here, i was wondering what the difference between the three groups of fish were. If you guys can help that would be great! Thanks!

My Muddiest Point

My muddiest point is how to distinguish the three different types of fish. Is there some mnemonic device that helps you?

MUDDIEST POINTTTT

So are some fish not invertebrates and vertebrate? I'm confused with if some fish are and aren't and which are made of cartilage???

Comment to BenS

Try memorizing this way!
First letters in alphabetical order- AACCEMMNPP
Annelida,
Arthropoda,
Cnidaria,
Chordata,
Echinodermata,
Mollusca,
Mammalia,
Nematoda,
Platyhelminthes,
Porifera.

-Eunice Chang

Muddiest Point!!

#Muddypoint

i have a hard time with the fish like the different kinds of fish such as the jaw-less ones i don't know how much i need to know for the test on the 3 types of fish

#Muddypoint

i have a hard time with the fish like the different kinds of fish such as the jaw-less ones i don't know how much i need to know for the test on the 3 types of fish

MUDDIEST POINT!

hi guys, i understand mostly everything this unit, but the only thing I'm having troubles with is remembering all of the phylums!

So if anyone has a method for memorizing them I would appreciate it if you told me!

Muddy Pointeroo

Hey Guys I having some issues distinguishing the main differences between the Phylums Nematoada and Annelida PLEASE HELP ME!!!!

mudddddiestttt .

Hey it's Tessa here. I need someone to help me think of a way to remember the types of invertebrates in a manageable way, so I can learn the information and not just remember it word by word.

Muddy point

Hey it's eleni and the thing I had the hardest time with is the invertabret phylums!! Can someone please break them down for me really simply?

Mooodiest Point.

ANIMAL DIVERSITY! I didn't know this unit was going to be soooo complicated! But we all survived. :) So my muddiest point is knowing the difference between class, order, family... can you guys come up with an idea to remember the order and what they represent? Ay! No me gusta nada!

Muddiest point

Its jarod. My muddiest point of the day is what are the three different types of fish are and what makes them different. Help would be great.

MUDDIEST POINT

What i need help on is understanding is, the kingdom,phylum and class. i know everytime we have the animal of the day, Mrs. Stein goes over this but i'm still very confused. if anyone can help or tell me where i can find it in our text book, that would be Great!

MUD POINT of Unit 8: Animal Diversity

My mud point from this unit is why chordates are not always vertebrates!?
Also, what are the economic and humanistic
importance of invertebrates??




-Eunice Chang <3 <3 <3

Muddy invertabrate

My Muddiest point is why we are so closely related to echinoderms and not other invertebrates

Muddie Point

hey guys!!!! its kelly and i dont get the difference between the 3 different groups of fish

uhhh, what was that?

Hey! It's Kara S. and I am confused on what evolution of jaw, lungs, feathers, ect is all about!

Scribin' it Up! Tuesday

Hey! It's Kara S. Today we briefly went over characteristics of invertebrates, because after today Mrs.Stein is sooooo done with them! We completed quite a pleasant lab, observing the comparisons between crayfish, spiders,and grasshoppers. We have our Unit exam on Thursday I believe! That's All!

A point that's muddy...

eyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy.

Hey peeps it's Trent. My muddiest point is, uh, how many eggs do mammals produce? Because it varys! Is there an average? Help would be appreciated. Yeah thanks.

Muddiest Point!

my muddiest point is about what a taxa is. thanks!

muddy point

Hey guys it's Shane, I was wondering what taxa and taxonomy have to do with invetebrates and what we are learning. I also was wondering what they mean too and if you could help that would be coo.

Scribe

Hey its Jon witht he scribe for today. As soon as we all sat down, we got our AOD!!! "Animal of the Day". Today it ended up being a Dumbo Octopus. Very little is known about this organism accapt for that it live in extreme depths, and may grow up to be about 20 cm long!! It is part of the domain Eukarya, kingdom Animalia, and phylom Mollusca. After that we quickly got working on our 2 labs, UP 13-14, andd UP 19-27. We got to observe many different Invertebrates which was a blast! We even got to touch some cool creatures. We alos get tomorrow to work on our labs which should be really fun...next scribe is.........MARK :)

Scribe

Hey its Jarod here with todays post. When we walked in today a weird butsome what funny video was playing and we had to grab the animal of the day slip. when everyone was settled we were told that the animal of the day was a weird looking animal called a Axolotl. This is also know as the mexican walking fish because it has little feet that it uses to help it swim. Its class is amphibia. It is native to mexico and a cool fact is that it is use in scientific experiments because it can regenerate most of its body parts, a characteristic that we don't have. Once we got past the animal of the day we learned about 6 different invertebrate animal phylums. We talked about Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Mollusca, Arthropoda and last but not least Echinodermata. I am not going to go in to detail with every thing that we talked about today. Our homework was to read 26.1 and to finish the green chart. During class today you could have actually got a lot of stuff to put on the green chart but you didn't have to. Other homework is to finish the animal profile and do your reading list. The scribe for tomorrow will be.......................Jonathan b. Good luck!

New Tables!!!!!

First day back from the long weekend, its a Monday. first thing i see when i walk into my first period bio class, BOOM! new tables. these tables allow us to ask for help from our peers sitting next to us and give me more room to put my junk on t he desk. after i got over the fact that these new table, alt though a little to short for my liking, are awesome, we learned about taxonomy. when i first heard this word the first this i thought of was animals that are stuffed so they can be kept in some room. i quickly learned that this is the exact opposite. taxonomy is the study of classifying animals we learned about the different classifications of animals and which level is which in the study of taxonomy. this carried over into the next day. we continued our notes on taxonomy and did some hands on things with this by classifying different types of aliens. we then were assigned the task of using a chart to find out what species sharks where based on their physical appearance . this was actually an interesting assignment being able to use one chart to find out their species of many different animals.o ya, last but not least we learned about some strange animals over the past two days. we learned about a slime eel that has survived based on the fact that it uses its slime to get away and the star nose mole that to only is the worlds fastest eater but the fact that is relies on is amazing nose to find food. so aside from the fact we have these new awesome tables we learned some pretty interesting stuff too.

muddiest of points

if you get down to one atom left in a half life problem do you split that into another half life or do you just get rid of it?

muddiest point

hi guys I understand everything except for analogous structures (sorry if I spelled it wrong) I just can't find what they are so if someone can tell me that would be great thanks!

Muddiest Point

So I'm kind of confused on what the isolations mean, like why do they give us evidence for evolution?

Muddiest Point

My muddiest point is relative dating. I don't understand how it allows someone to tell whether one fossil is older or younger than the other D:

EVOLUWHAT?

I still don't understand the Miller-Urey Experiment, can someone explain it to me in the simplest way possible?

I DONT GET THIS vv

Radioactive dating anyone?? helpppppppp

<3 Eleni P

no comprende. Ayuda por favor?

Hey guys! TessaN heree. So I pretty much understand everything, but I missed the day when we did lab 38 about evidence of evolution. So I just want to clarify what is the difference between homologous and analogous structures?

MUDDIEST POINT

Hey, GUYS!

Heidi HERE! My muddiest point isss..........

WHAT THE DIFFERENCE IS BETWEEN AUSTRALOPITHECUS, HOMO HABILIS, HOMO ERECTUS, & HOMO SAPIENS!!!! I JUST DONT GET IT!!!! WHY ARE THEY IMPORTANT & WHATS THE DIFFERENCE???? OH AND THE "SURVIVAL OF THE FITTEST" + THE "DESCENT W/ MODIFICATION"

I know its A LOT but if you guys can help me with at least one that would be GREAT!!!!

Comment to Jarod

When Darwin was in the Galapagos islands, he noticed there were a variety of finches that existed on each of the islands. There were many different species of finch which differed in beak shape and overall size. This is adaptive radiation and natural selection at work. Remember the "sun" that Mrs. Stein drew? The adaptive radiation picture looks like a sun, because 1 species gave rise to many species.

-Eunice Chang

Brudny Punkt

Hey Guys I'm kinda confused on the exact meaning of a Half-Life.

Muddiest point...

I'm clueless on Speciation and it's factors.

muddiest point!

okay, so...i'm pretty solid on most of what we covered in this chapter...but i'm completely clueless when it comes to half-lifes, radioactive dating, and everything else that was on the M&M Lab.

Stuck In The Mud

Hey guys, it's Maggie.

I was just confused if the amount of a half life changes based on the substance that its on??

Muddiest Point

Hey everyone it's Yasmin! ; )
my muddiest's points are:

1. I still don't get how to do the half-life problems...


2. Also, i don't understand how genetic drift plays a part in Evolution

If anyone can help that will be great!!!

how does it impact evolution????

hey its jessie and im wondering how photosynthesis, aerobic respiration and sexual respiration impacted evolution.

Muddiest Point

Hey it's allie and my mudiest point is... What is Genetic Drift? and why is it so important?

Muddy to the point

Hey guys, it's razmtaz!(riaz)

my point is the what exactly is the genetic drift? and where can I find it in my textbook?

Muddiest Point

Hey its jon, and my muddiest point is the MAIN differences between Darwin and Lamarck?!

Unit 7: Evolution -Mud point!!!!!!!

The hardest part of this unit was radioactive dating.... I have troubles making graphs. Also, what does "descent with modification" mean??



-Eunice Chang

Muddiest Point

Hey its Jarod. My muddiest point is what is adaptive radiation again. I forgot please help.

El pointo de mud

heyy its catie! ok so i understand what half lives are, but im still confused about what they can tell us. Like how does it give evidence about evolution, and what does it prove (besides how many atoms there are)

Muddy Point

Hey! It's Kara S. and I still don't understand how to set up the table and calculate half lives!

Muddie Point

hey guyss! its kelly and the thing that I dont get from this unit is speciation

bones in the mud

My muddiest point how does the half lives of radioactive help us understand evolution

Point in the mud

Hey guys it's Shane, there is only one thing that I'm not sure about. I'm not sure about what natural selection has to do with survival of the fittest and if you could tell me that would help.

Scribe Post =)

Today was a typical day in a BIO. Fun as always! Got to love 8th period Bio. =)

We reviewed what a half life was and how it plays a part in EVOLUTION.

We reviewed by doing an extra problem in our packet on page 29 problem B. =(

Next, we went over the quiz that we took on Friday on 19.1.

-We talked about the difference between mass extinction and background extinction. Coevoltion which is the process by which 2 species evolve in response to changes over time.Also,we learned adaptive radiation was when a small group evolved over a short time into several different forms (beaks) that live in different ways. This takes us back to how the finches evolutionized their beak to adapt to their envoirment.

3. Lastly, we finished it up with a lab! doing a lab is a very helpful way to understand evolution and the many topics that come with it!

-We measured the head and the width of the jaw to see how are brain, head and teeth evolutionized from big jaw to a round one!

Class Reflection

Today in class, we talked a lot about half lifes.

That's the time period it takes a certain type of substance to decay and decrease by half.

To help tie the lesson in with a lab we used M&Ms as an example. Starting with 100 separate pieces we put them in a cup and shook them for ten seconds, then pour them onto a plate and remove all the ones with the labeled side 'm' up. we kept doing that for ten seconds 6 times collecting the data on a chart. Then in the packet we filled out all the questions and made a line graph on our data.

of course after we were done with the lab we got to eat the M&Ms!!

**dont forget to finish up pages 31 and 32 in the packet for homework!!**

and finally...CONGRATS TO THE GIANTS :)

Scribe!

Hey it's Allie!!!!!Today in class we turned in our Lab 40 the Grasshopper leg one... which by the way was absolutely DISGUSTING!! after we took a quick quiz about our 19.2 reading, we worked in our packet, which was about time periods and eras of evolution. Finally, we were watched a video. It was really interesting on the theories about how dinosuars went to extinct.

Scribe post:

Hey its Jessie.

In class today we reviewed the blog post from yesterday (homologous structures, analogous structures, vestigial stractures, comparative embryology and molecular biology) and talked about GENETIC VARIATION, GENETIC DRIFT and SPECIATION.

GENETIC VARIATION:

-the change in frequency of allels due to natural selection

GENETIC DRIFT:

-the change in gene pools of a small population due to change(wind blew them away, fire, hurricane,ect....)

SPECIATION:

-when species develope into new species (NEEDED- reproductive isolation)

we also measured the legs of dead grasshopers, YUCK! and compleated a lab.

Scribe:Evidence Revolution

Hey guys, it's Eunice L.
Today, we reviewed Darwin and Lamarck. Finding similitaries and differences between both of their theories. We then moved onto Evidence Revolution.
HOMOLOGOUS STRUCTURES
Are similar organisms that adapt to different enivronments in which the functions of appendeages are changed.
ANALOGOUS STRUCTURES
Are different organisms that started to live in similar environments in which the functions of appendages evolved, performing the same function.
VESTIGIAL STRUCTURES
Are structures that continue to remain in organisms but have no fuction. Such as leg bones and the pelvis in snakes and whales.
COMPARATIVE EMBRYOLOGY
By obeserving embryos of organisms, embryos that are similar are found to be more closely related.
BIOCHEMICAL EVIDENCE (MOLECULAR BIOLOGY)
The relationship of amino acids and DNA sequences. Such as how a chimpanzee's and a human's hemoglobin are alike.

Don't forget the Endangered Species Project!

Here are some videos about Evolution
http://www.youtube.com/watch?v=uAZmLYWEPGk
http://www.youtube.com/watch?v=yVqJ_mQazik
http://www.youtube.com/watch?v=qBauu1PyOxw&feature=related
The last one I'm not sure if it has much to do with evolution, but I think it's pretty cool.

Extra credit

I'm sorry! I can't comment on the extra credit...
Here's my comment:

The fact that hunters are hunting these poor antelope's is cruel and immoral. The dude from the interview seems like he doesn't really love the animals. He wants money from killing these exotic animals. "Hunting... provides an economic incentive for ranchers to continue to breed these species...(reduced species extinction.") I would have to disagree with this quote from the video. Yes, these species vanished from Chad, Egypt, and other African countries, and they have thrived in Texas, but hunting itself did not boost up the population. This had to be somehow connected with their environmental change. Maybe there wasn't enough food back in Africa, but there's more food in Texas. I don't understand how sacrificing one can bring up an entire population. All that the hunters think about is the "population", but it's not even clear that their hunting is the reason these antelopes are thriving. The bottom line of this problem is not the population numbers, but natural selection- animals are better adapted to the environment (Texas) and survive better reproducing more offspring. I agree with the woman who was against hunting. You don’t create a life to shoot it. I would rather want them to go extinct than to shoot them.

-Eunice Chang

EXTRA CREDIT!!!

Click here to watch the recent segment about the hunting of endangered species in Texas.

For extra credit, post a comment to this post expressing your response and opinion on the story. The quality of your response will determine how much extra credit you get! This opportunity will be limited to the first 4 people in your class to respond.

Boobies the bird!

If you were to hear the question "how many boobies are getting laid"out of context, you might wonder if that is appropriate for a freshman bio class. what was actually being said was how many eggs of the species of birds called boobies (right) were being laid. we have over the last few days been talking about evolution. when evolution comes up, one of the names that comes soon after is Charles Darwin. we have been disusing the evolution that takes place on the islands he visited. we spent some time on birds and how they adapt and what there adaptations are for the birds on the island. we have been talking about why boobies choose to push there sibling out of the nest and leave it to die. we concluded that it was because its harder for the mommy booby to feed 2 chicks insead of just one . this is why the mother of the booby lets this happen. we then talked about the different beaks on birds and how they are specialized with what food they eat. we took a hands on approach with this by taking different tools such as a spoon or pliers to retrieve and open different types of food. we ended up concluding class with this lab.

Eunice Lee will be our next scribe!

Yeah so this is what we learned today. (blog post)

Hello peeps, Trent here, today we learned several things. Mainly about our project that's due in FEBUARY! Remember your project needs to include; factual information, don't make it boring and remember it must be PERSUADING!

Next we learned about sad old Lonesome George...

Whats up with him? Lonesome George, the last remaining Galápagos giant tortoise, may soon be a father after years of efforts by scientists trying to get him to mate (since 1993).

Info about him: Lonesome George, weighing 90kg (14st 2lb) was a native of Pinta, an isolated northern island of the Galápagos. By the late 1960s, it was found that the tortoise population on the island had become close to extinction. George, discovered in 1972, was immediately brought into captivity at the Charles Darwin research station on the island of Santa Cruz .

Finally we continued the movie we started yesterday. The most important thing we learned though was that Darwin observed that the turtles on certain islands were different from other islands (variation). He then went on to notice the variation between the birds beaks on the islands. Another important quote was when the "guy" said that the animals have gone their own way, but shaped by the condition they were in, the environment changed their trait(s). We then continued on to learn about how evolution happens annually with the birds of the islands. This happens because of natural selection. Meaning that females selectively choose mates on the conditions. Like how they sometimes reproduce with a smaller size so they can eat the smaller seed

s more effectively. Same goes for the big seeds, they must adapt to have bigger beaks in order to eat the bigger seeds in dry seasons.

Evolution-Scribe

Hey guys! So sorry I forgot to do this yesterday. Yesterday in class, we started Unit 7 which is called, "Evolution". Evolution is defined as the changing of species over time. The amount of time that we are talking about is hundreds of millions of years. A very important man who brought this idea up was Darwin. His theory stated that species can change over time. This idea came up when he noticed how creatures could be different from one island to the next. This changing can either be beneficial to the species or can affect the species negatively. A negative effect can result in extinction because their new or old adaptions (characteristics) may not fit in with its environment. When most people think of the word evolution, the first thing that comes to their mind is that us as humans, evolved from apes/monkeys. But, the truth is that we share a common ancestor with apes. So to conclude, we all are apes.

2nd Semester! Wooohooo!

Welcome Back!

As 2nd semester gets underway, I encourage you to take a moment to reflect on first semester. If you would like to earn a homework pass, come visit me in the next week and be prepare to answer these questions!

1. Do you feel like the grade you got this semester was the grade you earned? Why?

2. What were you most proud of from 1st semester?

3. What disappointed you most about your performance from 1st semester?

4. What goals have you set for yourself for 3rd quarter/2nd semester?

5. What will you do to achieve those goals?

6. What can I (Mrs. Stein) do to help you?

I look forward to speaking with each of you about how to make this a successful semester!

The first scribe for second semester will be MAGGIE!

super duper muddy point

Hey there! :) So, I was wondering, what's the difference between FSH and LH again? ALSO, what were the two phases called of the graphs? ...One of them was called the follicular phase and what was the other one? THANK YOU!

Muddddyy muddddy point

Hey!its Kara, what the heck is the ectoderm, mesoderm, and endoderm? Where are they?

muddiest point

i do not get what we need to learn about birth control and what about it will be on the test if anything.

>------MuddiestPoint------>

Hello, my muddiest point for this unit is, how can ovarian cancer be formed/happen?

Trenton

Muddy Point

My muddiest point is how the estrogen and progesterone give feedback and kind of the basis of the menstrual cycle.

muddiest point!

Hi guys!

I don't understand what a zygote, chorion, gastrulation, and amnion means.......well I know thats a lot of words but if you guys can help me with at least one that would be GREAT! thanks!

Stuck in the Mud

My muddiest point in this unit is the different between FSH and LH. I know they are hormones but do they have different functions?

MUDDIEST POINT

Hey guys, I know we have been through alot last week and this week. We have watched alot of very GRAPHIC videos, but it's all good, it's nature... i think. Anyhow, what i still have trouble is understanding the menstrual cycle. Also, I'm not sure how estrogen and progesterone play a part in the menstrual cycle?
If anyone can help explain more clearly, that would be great!
Thanks!

point de muddy.

hi everyone! TessaN hereeeee. I missed one day of class where we went over the menstrual cycle, so can someone just give me a summary of what happens and what hormones cause to happen and what the egg does? thanks.

SCRIBE!!

HEY EVERYONE! It's Allie, and today was Tuesday, January 10. In class we reviewed the Menstrual Cycle, and for the rest of class we watched clips of a video. We went over the 1st, 2nd and 3rd trimester, and DELIVERY!! FUN? Yeah I know. What we learned was, in the 1st trimester the head is massive compared to the body, and the placenta is the life support for the fetus. 2nd trimester to start out the fetus is no bigger than a fist, and by the end of the trimester the fetus starts to mimic normal movements such as swallowing, and grasping. 3rd trimester the fetus gains weight FAST, he/she can recognize their mothers voice, and can recognize and move to music (if it's recognized). During delivery, the cervix has to open 10 centimeters, and any where around 2 weeks a way from the due date is safe for the baby to be born. AND REMEMBER STUDY FOR THE TEST THURSDAY!!!!!!

Muddiest point YO

Hey guys! Ok my muddiest point is understanding what the egg does in the menstrual cycle. Or well actually the whole menstrual cycle... I understand that it uses feedback mechanisms and what glands make which hormone and stuff...but im kinda confused about the details of the menstrual cycle.

Muddiest Point

Hey guys so i'm sort of struggling with the feedback system I just cant grab the concept of what signals what and which hormones signal other hormones,etc

HELP NEEDED

heyy its eleni, ok so my muddiest point is the feedback loop but by reading all the other posts, i think weve got that covered soooo im going to put up a different one...

im really confused as to what the difference between estrogen and progesterone is. also if piuitary gland is for growth then whats the hypothalamus for?

^^christmas colors, so sad its over :(

Muddiest Point!

For my muddiest point, I dont know what the negative and positive feedback loop are. I know what the feedback system is but I dont know if there is a difference from that and the feedback loop. And if they are the same thing, what makes it postive and negative. thanks!

*Miracle of Life* Muddy point (?)

This unit was interesting and miraculous to me! The formation of a baby was a more difficult and complex cycle than I thought. A lot of the things we learned so far were pretty straight forward, but I got confused on gastrulation and differentiation. What exactly is the difference between them!?

-Eunice Chang

MUDDIEST POINT...

This has been an interesting unit! AM I RIGHT? Well... my muddiest point is.. like knowing SOME parts of the male/reproductive system, its so hard to remember where everything goes and what their function is!

Muddiest Point!

Whats up?! So im a lot like many other people...I really dont understand the feedback system, and how it works. Whats the deal what that?!

Muddiest Point

My muddiest point is what are all the different stages of the menstrual cycle?

SCRIBE!!

Hey guys!! Sooooo, today we started off class going over some homework. We went over and reviewed the menstrual cycle. Something that helped me remember how it worked was the little chart thing Mrs. Stein wrote on the board that kinda went like this. HYPOTHALAMUS -> PITUITARY GLAND -> FSH & LH -> OVARY -> ESTROGEN & PROGESTERONE. ( LH and progesterone are linked. Whereas FSH and estrogen are linked.) Then the second half of class we took some notes on the idea of contraception, fertilization and implantation. Pretty much the main idea of contraception is to keep it safe when you have sex. But the safest plan is to practice abstinence so there is no possible way to have a baby. Then fertilization and implantation was pretty much just that the fertilization occurs in the oviduct and that there are some cell divisions that we should know about like, the embryo, the morula, and the blastocyst. So yeah, that what went down. Then we went home. :)

Scribe of the day YAY

Hey guys it's catie! So i forgot to post last time...sorry about that. but here's what we did in class today!




We learned all about the Menstrual Cycle and how it runs!



~It is regulated by negative Feedback Mechanisms. It all starts with the hypothalamus, who controls the pituitary gland. Responding to low Estrogen levels, it signals the pituitary to secrete more FSH (follicle stimulating hormone) and LH.



~Then, the follicle (EGG!) develps, which releases more estrogen. This 1st half of the cycle is called the FOLLICULAR phase.

~Next comes Ovulation, where the egg is released.

~Then it's the Luteal Phase. Here, uterine lining builds up. The egg can get fertilized.


If the egg is NOT fertilized, this cycle starts all over again! woo hoo!

****

The chart displays how each gland produces the hormones of the menstrual cycle. (Sorry it's not lined up well...i drew it on paint). Basically, FSH triggers the Ovary to produce Estrogen (that's why they both have purple stars) and LH triggers the Ovary to produce Progesteron (green stars).

******
We also learned a little about contraception today. Contraception means to stop fertilization. In other words, BIRTH CONTROL! There are many different form of birth control, such as pills, condoms, etc. But abstinence is the only 100% affective way to prevent pregnancy.

stick in the mud

My muddiest point is the feedback system and how its works what tells what to do things.

REALLY MUDDY POINT

My muddy point is what happens in alll the different stages in the Menstrual Cycle.. help please.

Muddiest Point

My muddiest point for this unit is what happens in the stages of development and pregnancy

Muddiest point

The muddiest point for me would have to be the stages of a fertilized egg. I get some of them but not all. If you could give me a little help, please.

SCRIBEEEE!!! YAY

So this is Sarah! with me late scribe post..... Any who what we did in class on tuesday!First we started with going over our chart from 34.3 reading I believe haha. The chart was about Internal and external fertilization and development. External fertilization is when the eggs are fertilized outside the body of the egg providing individual. The requirements of external fertilization are; Large number of gametes, and water. Internal fertilization is when the eggs are fertilized inside the body of the producing individual. External development is the same as external fertilization except the child or children are developing outside the body. Internal development is the same as internal fertilization except it is when the egg providing individual is carrying the developing baby inside the body. We also talked about the goals for the male and female reproductive system. Some examples for the female reproductive system are producing eggs, developing the baby, providing nutrients for the child inside the female, etc. Some goals for the male reproductive system are producing sperm, successfully transferring sperm to the female, etc. Finally we finished our video about all types of animals producing babies like, whales, fish, baboons, and many more!!! Well thats all for now! (:

THE WHAT? THE MENSTRUAL CYCLE!

Ello! It's Rachie In the beginning of class we went over the Male and Female Reproductive structures where you could match the word to the correct parts. You can find it on Moodle if you want to practice!

Second, we learned about the Endocrine System. Which regulates MANY bodily functions and maintains homeostasis. In simpler words, it influences almost every cell, organ, and function of our bodies.

Next, we went over slides about the Male/Female Secondary Sex Characteristics.

Male:

During puberty, FSH stimulates testes to produce testosterone.

Your probably wondering... what in the world does FSH stand for!?

F ollicle

S timulating

H ormone

It is released by the pituitary gland. Testosterone causes:

• Larynx to enlarge
• Broad Shoulders
• Facial/Pubic Hair
• Muscle growth

Female:

During puberty, FSH stimulates ovaries to produce estrogen. Estrogen causes:

• Breast development
• widening of hips
• menstruation

Last but not least.... the MENSTRUAL CYCLE!

Remember: Hormones regulate the menstrual cycle.

If you want a little laugh, watch this video.

But if you want to be serious... watch this one.

NEXT SCRIBE IS...................... CATIE W. <3