If harming an animal species has a negative impact on the size of a group of individuals of that species, then harming an animal species has a what on the size of a group of individuals of that species?

Answer choices:
- Abnormal cell growth
 - uncontrolled
 - net growth
 - positive effect
 - massive damage
 - negative impact
 - non-negative impact
 - major threat to health

 

      negative impact    