I would say excretion since that means the process of expelling waste matter.
Answer:
I think its D. Artificial Selection
Explanation:
Sorry if this didn't helped you.
Intraspecific competition involves an interaction where by members of the same species compete for limited supply of resources. The end result is the reduction in fitness for both individuals. Animals can reduce the intensity of intraspecific competition by exploiting different type of food resources and also moving to other areas that are sparsely populated and with high amounts of food.
