You are presented with the question "Competition may cause animals to fight towards members in the same what?" and the following answer choices: 
- bloodline
 - existence
 - biome
 - planet
 - clams
 - Mammal
 - abalone
 - genus

Now knowing that competition may cause animals to fight towards members of their own species and species is a property of genus, genus is a property of family, etc, choose the best answer.


 

        genus 