Mass and distance
mark me brainliest!!!!!
Answer:In ecology, a niche is the match of a species to a specific environmental condition. It describes how an organism or population responds to the distribution of resources and competitors and how it in turn alters those same factors.
Explanation:
I think it is A because birds do help spread around the seeds hope i helped
Answer:
Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function.