You are presented with the question "What kicks in after a certain number of divisions?" and the following answer choices: 
- Energy.
 - antibiotics
 - Energy
 - separation
 - nerves
 - apoptosis
 - soccer leagues
 - Plants growth

Now knowing that cells are programmed to divide only a set number of times and apoptosis is programed cell death, choose the best answer.


 

      apoptosis   