Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Keystone Speices Help?

I need some help with this question. I think that the answer is C, but it could be E.

3. Keystone species:

(A) impact the physical structure of a community because they have high biomass.

Both C and E are correct

(C) profoundly impact community composition despite a relatively low biomass or abundance.

(D) prevent the movement of energy from one trophic level to the next.

(B) act primarily as herbivores in a community.

(E) are usually primary producers (plants or other photosynthetic organisms).

1 Answer

Relevance
  • 7 years ago
    Favorite Answer

    I'm pretty sure it's C. Since the definition of a keystone species is "organism that has an unusually large effect on its ecosystem"

    Source(s): My textbook and brain
Still have questions? Get your answers by asking now.