Question

tuesday 9/16: understanding the nervous and endocrine system
the system helps regulate mood, growth, and metabolism.
glands blood nervous brain endocrine

Explanation:

The endocrine system uses hormones released by glands to regulate mood, growth, and metabolism. Hormones travel through the blood to target cells. The nervous system is more involved in rapid - response functions, and the brain is an organ, not a system for this context.

Answer:

endocrine