Fact 1: An animal requires nutrients to grow and heal.

Fact 2: Animals and humans eat plants for their nutrients.

Given the two facts above, answer the question "What happens when animals eat plants?" with the following options: 
- Energy.
 - energy
 - growth
 - glycogen
 - They die
 - They fall asleep
 - They grow
 - They gain weight


 

       They grow  