Cheetahs survived an event that brought them close to extinction. the few survivors repopulated the earth with the cheetahs we have today. this resulted in a loss of variation. the cheetahs are an example of
a speciation
b genetic drift
c reproductive isolation
d geographic isolation

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Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.