What is the importance of the carbon and nitrogen cycles to ecosystems?

A.
They supply the energy needed for living processes.

B.
They are needed to release the energy stored in food.

C.
They provide materials organisms need to build their bodies.

D.
They ensure that matter only moves within a nonliving environment.

Question

What is the importance of the carbon and nitrogen cycles to ecosystems?	
 
 A.
They supply the energy needed for living processes.
 
 B.
They are needed to release the energy stored in food.
 
 C.
They provide materials organisms need to build their bodies.
 
 D.
They ensure that matter only moves within a nonliving environment.

cherry17ann · Answer

If anyone was looking this up to find the right answer it's C. They provide materials organisms need to build their bodies.