Answer:
a
Explanation:
its a semi permeable membrane. it chooses what can go in and out so nothing bad happens.
The answer is B:
A chipmunk takes shelter in and oak tree and is protected from predators, and in return disperses seed around the area
When we talk about evolution we come across the process of natural selection. Genetic variation is always required for the natural selection. A change or variation in the genes may help the individuals in a population to better adapt to the environment. Such changes may be brought by mutations or random mating in the population. Such variations help in the survival of the population by allowing them to adapt to changing environmental conditions.
