Answer: Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. ... Directional selection does the “heavy lifting” of evolution by tending to move the trait mean toward the optimum for the environment.
Answer:
The answer is A. Heterozygous
A pillbug belings to Kingdom Animalia, Phylum Arthropdoa, and Class Crustacea.
Answer: freeze-thaw cycles and hot and cold cycles
Explanation:
