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 am hesitating between 4 options to answer the following question, which option should I choose?
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?
Possibilities:
- They get energy from living organisms.
- They turn decaying matter into nutrients.
- They provide food for other organisms.
- They absorb oxygen from the environment.

They provide food for other organisms.