They get energy from living organisms. They turn decaying matter into nutrients. They provide food for other organisms. They absorb oxygen from the environment.
I gave my students this multiple choice question: Some sea grasses grow near a group of palm trees on a sandy shore. Which best describes the role of both the palm trees and sea grasses?

Only one answer is correct among these 4 choices:
- They get energy from living organisms.
- They turn decaying matter into nutrients.
- They provide food for other organisms.
- They absorb oxygen from the environment.

Could you tell me which one is correct?

They provide food for other organisms.