Answer:
use or disuse of organs.
Explanation:
Organisms can change during their lifetimes by selectively using or not using various parts of their bodies
The ratio should be 1:2:1. Carol concluded that there are 2 homozygous dominant, 1 heterozygous, and 1 homozygous recessive.
However, it should be 1 homozygous dominant, 2 heterozygous, and 1 homozygous recessive.
Answer: They would either die or have to adapt to their new very harsh conditions. The population might greatly decrease as well.
Explanation:
2.5 million years ago the first genus Homo evolves.