Answer:
Well, it helps us categorize organisms so we can more easily communicate biological information.
Explanation:
The answer that fits the blank given above is nine (9). The molecular clock is a technique wherein the biologists investigate biomolecules' rate of mutation in relation to time that the organisms diverged. In this case, the molecular clock shows that chimpanzees and humans diverged about NINE million years ago.
Answer:
4. Habitat Isolation
Explanation:
Habitat isolation is a type of prezygotic reproductive barrier or isolation that occurs when two similar populations that can interbreed successfully are prevented from mating with each other as a result of being isolated by habitat. That is, they occupy different habitats. This is what keeps these frogs recognizably distinct.