Answer: C
Explanation: Smaller single-celled organisms have a high surface area to volume ratio, which allows them to rely on oxygen and material diffusing into the cell (and wastes diffusing out) in order to survive. The higher the surface area to volume ratio they have, the more effective this process can be.
Remain stable is the answer
Answer:
Explanation: Sponges are animals with dense skeletons that are highly adapted to their environments.
Space, environment, weather, population increase and decreas
