If one population dies out, all the populations that depend on that species for food may also die out. A change in one population affects the entire community because all the populations of a community depend on each other.
Answer: A sponge, screen door, your wall, window & door of your house.
Answer:
A bone
Explanation:
It is present in every cell of the body. Most of the phosphorus in the body is found in the bones and teeth
