I think the answer is evolution.
Answer:
The universe is the answer
Answer:
This is a type of breeding in which two organism having some special features are choosne to breed with each other to make a single organise which has both features accumulated
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