Answer:
A. Quaternary
Explanation:
We came around Quaternary time frame. This period is called the "Age of Humans"
A Star fish
Radial symmetry is when it all comes out from one point (the middle)
Example: Darwin’s Finches
In evolutionary biology, adaptive radiation is a process in which organisms rapidly diversify from ancient species to a wide range of new forms, in particular when environmental changes provide for new resources, create new challenges or open new niches to the environment.
Answer:
Star 1 is hotter and brighter than Star 2