I believe the answer to this is The wave pushes the water particles forward.
I believe A because they have many cells
Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
B) Crossing over is the correct answer to the question
Answer:
They lack a nucleus, but they do have ribosomes.
Explanation:
Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.