Fact 1: All animals are heterotrophs.

Fact 2: Heterotrophics means fed by others.

Given the two facts above, answer the question "All animals are what?" with the following options: 
- fed by hand
 - homogenous
 - fed by others
 - parasites
 - fed red meat
 - fed whole grains
 - important habitats
 - insects


 

   fed by others      