The answer is option D. We have no way of knowing the number of revolutions of the planets.
Answer:
Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, Many of these migrations are north-south, with species feeding and breeding in.
False. Plant cells are able to reproduce without them.
This process is called “crossing over.”
It will increase genetic diversity in gametes, so option A would be correct I believe !