Keystone species
A) appear to be common in terrestrial systems, but not in aquatic ones.
B) appear to be common in both terrestrial and aquatic systems.
C) appear to be common in aquatic systems, but not in terrestrial ones.
D) by definition, cannot occur in aquatic systems.
E) by definition, cannot occur in terrestrial systems.

Question

Quizplus · Accepted Answer

Keystone species are important and influential species that have a significant impact on their ecosystem. They can exist in both terrestrial and aquatic systems. Examples of keystone species include wolves, sea otters, and beavers in terrestrial systems, and sharks, sea stars, and sea otters in aquatic systems.

Keystone Species