Question

populations of elephants, gazelles, lions, zebras, and grasses all live and interact together in an area within the savanna. these populations of organisms live together in a(n)...
abiotic and biotic factors
community
species
country

Explanation:

A community is a group of different populations of organisms that live and interact in the same area. Abiotic and biotic factors refer to non - living and living components respectively in an ecosystem. A species is a group of similar organisms capable of interbreeding. A country is a human - defined political entity. Here, multiple populations living together fit the definition of a community.

Answer:

B. community