You are presented with the question "Harming an animal species has a what on the size of a group of individuals of that species?" and the following answer choices: 
- Abnormal cell growth
 - uncontrolled
 - net growth
 - positive effect
 - massive damage
 - negative impact
 - non-negative impact
 - major threat to health

Now knowing that harming an animal species has a negative impact on the population size of that species and populations are groups of individuals of the same species, choose the best answer.


 

      negative impact   