Fact 1: Many consumers feed at more than one trophic level.

Fact 2: Consumers are heterotrophs that feed on tissues of other organisms.

Given the two facts above, answer the question "What may eat other organisms at more than one trophic level?" with the following options: 
- barnacles
 - chickens
 - fur seals
 - humans
 - heterotrophs
 - mammals
 - animals
 - rabbit


 

     heterotrophs    