Question

choose the correct answer. an alligator is an example of a keystone species. what is the definition of a keystone species? a species with significant influence on the structure and functioning of that ecosystem a species that prefers to reside on top of or close to stone a species with no influence on the ecosystem and could be safely removed

Explanation:

A keystone species is defined by its significant impact on an ecosystem's structure and functioning. The second option is a misinterpretation of the term "keystone" (not related to literal stones). The third option describes a species with no ecological importance, which is the opposite of a keystone species.

Answer:

a species with significant influence on the structure and functioning of that ecosystem