This drawing shows a human body system. What is the primary function of this body system?

A. The transport of nutrients, water, and oxygen to body cells.

B. The chemical breakdown of food into smaller pieces.

C. The protection of vital organs from injury.

D. The production of hormones that regulate growth and metabolism.

its A ( the transport of nutrients,water,oxygen to body cells

Explanation:

I just did it :)

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

b is the correct