Fact 1: Cells are the basic units of the structure and function of living things.

Fact 2: Respiration is a function of life, which means it is carried on by all living things.

Given the two facts above, answer the question "Cells are the basic units allowing what in all living things" with the following options: 
- movement
 - motion
 - produce light
 - all matter
 - rapid expansion
 - respiration
 - to stay warm
 - Animal survival


 

      respiration   