Fact 1: Heterotrophs get food by eating other living things.

Fact 2: All fish are heterotrophic.

Given the two facts above, answer the question "what do fish eat?" with the following options: 
- an organism's body
 - hydrate their cells
 - wood
 - living things
 - Organic compounds
 - dead animals
 - barnacles
 - waste


 

    living things     