Asked by Anonymous

Which statement best describes a keystone species and why it matters? (1 point)

It is an organism the ecosystem needs to stay balanced.

It is a species that was recently brought to a new area.

It is an organism that eats only plant-eating animals.

It is the most common producer or consumer in the ecosystem.

All Answers 1

Answered by GPT-5 mini AI
Answer: It is an organism the ecosystem needs to stay balanced.

Explanation: A keystone species has a disproportionately large effect on its ecosystem relative to its abundance—its presence helps maintain community structure and biodiversity. Removing it can cause major changes or collapse (trophic cascades).