The answer is Neogene
Explanation:
It cannot be Cenozoic because that is an era. Not a period. Paleogene, Neogene, and Quaternary (our current period) are all periods within the Cenozoic Era (our current era). On the geologic time scale, there are Eras, Periods, and Epochs (and a few more classifications). Humans first appeared in the Miocene epoch which is an epoch in the Neogene period (in the Cenozoic era).
This is why the answer is Neogene.
Hope this helps...
When erosion or deformities occur to a rock layer and then new rock layers are laid on top, the boundary between the deformed layer the new layer is called a(n)B. Unconformity
Diversity comes from people being of different cultures. Like if people from Mexico come into the US, that would create diversity, because were aren't of the same culture.
Diversity can be different races, different nationalities, or even different ages. Anything that is different from the majority creates diversity.
Hope this helps you out!^_^
The answer is The ability to retain moisture and burrow into the sand because they have to know how to retain moisture when there is no water during low tide. And they wo7ld not have to resist salinity.
Mitosis makes reproductive cells
