Sea stars, otters, and beavers through their influence on prey populations and habitat modification are considered _____ species.
A)keystone
B)competitive
C)ecological
D)replaceable

Question

Quizplus · Accepted Answer

Keystone species are species that have a disproportionate effect on their environment relative to their abundance. Sea stars, otters, and beavers have significant impacts on their respective ecosystems through predation and habitat modification, making them keystone species.

Sea Stars, Otters, and Beavers Through Their Influence on Prey