Fact 1: Heterotrophs are living things that cannot make their own food.

Fact 2: Mammals depend on the vegetation for food and shelter.

Given the two facts above, answer the question "Mammals are " with the following options: 
- animal transport
 - Heterotrophs
 - parasites
 - fur and fat
 - animals
 - pathogens
 - producers
 - more abundant


 

  Heterotrophs       