You are presented with the question "The basic functioning unit of life all share the same what?" and the following answer choices: 
- structure
 - four limbs
 - organ
 - Chlorophyll
 - Energy
 - layers of fat
 - health
 - Energy.

Now knowing that all cells share some of the same structures and basic functions and cells are also the basic functioning unit of life, choose the best answer.


 

 structure        