Answer:
A. Plant cells have cell walls and chloroplasts, Animal cells do not.
Explanation:
Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration.
Ecology is one component of Environmental Science that studies organismal interactions.
So your answer is c. interactions
Btw science and biology are almost the same thing