Fact 1: Competition may cause animals to fight towards members of their own species.

Fact 2: When habitat is healthy, many animals can compete for resources and still coexist.

Given the two facts above, answer the question "What may cause fighting within a species?" with the following options: 
- caring for young
 - deforestation
 - growing food
 - a tree falling
 - competing for resources
 - Males and females
 - depress neuronal excitability
 - making peace


 

     competing for resources    