Answer:
for the first page the answers are contains DNA, contains ribosomes, and lacks a nucleus. The answer for the second one is cell wall im pretty sure.
Explanation:
Answer:
micronucleus and macronucleus
The pyloric sphincter is compose of smooth muscle and is located between the pylorus in the stomach and duodenum of the small intestine. In digestion, it serves as a valve controlling the flow of food thus it prevents the contents of small intestine backing up into the stomach.
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.
