The correct answer of the given question above would be the third option: THE EVOLUTION OF POPULATIONS OVER TIME. What is represented by the base of a phylogenic tree is the evolution of populations over time. It is also known as the evolutionary tree. This tree shows the evolutionary relationships among species.
Fossils could not be found in that layer of rock
A=2
B=red blood cells rely on catalase, catalase decomposes hydrogen peroxide
C=The effect of replacing his is that the hydrophobic amino acid would not do well with water
D= the hydrophobic amino acid is like oil and water and wouldn’t do well decomposing hydrogen peroxide