B. Interaction — It refers to the effect that a pair of organisms living together in a communuty have on each other.
Explanation:
There are two types of biological interactions in the ecosystem:
- Positive interactions — this is a type of interaction in which the organisms involved benefited from one another and neither harmed. The result of this interaction is growth and survival. Example: Mutualism and commensalism.
- Negative interaction — a type of ecological interaction in which one organism were harmed and the other one is benefited. This type of interaction is when the organism is striving for survival, growth, and source of food. Example: Predation, parasitism, and competition.
