Hey so Radioactive dating determines the EXACT age of a fossil by the amount of time the radioactive (C14) atoms take to decay. half-life of C14=5,770 years. The graphs are easy once you know the x-axis is years and y-axis is #of atoms. For each half-life you ADD 5,770 years and DIVIDE the # of atoms in half. Also, descent with modification is the change in the inherited traits of a population of organisms through successive generations.
Hey so Radioactive dating determines the EXACT age of a fossil by the amount of time the radioactive (C14) atoms take to decay. half-life of C14=5,770 years. The graphs are easy once you know the x-axis is years and y-axis is #of atoms. For each half-life you ADD 5,770 years and DIVIDE the # of atoms in half. Also, descent with modification is the change in the inherited traits of a population of organisms through successive generations.
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