Aging occurs as cells lose their ability to divide, and illness, aging and death are inevitable. Given these facts, what is inevitable among the following options:
- movements in the earth's crust
 - tectonic plates being pushed together
 - religion
 - a hemisphere is tilted away from the sun
 - movement of tectonic plates
 - growth
 - Cells losing ability to divide
 - taxes


 

       Cells losing ability to divide  