Question

fill in the blank question
two organ systems are dedicated to internal coordination, communication between the other systems, and maintaining the overall homeostasis of the body. they are the blank system, which communicates by means of hormones, and the blank system which sends quick electrical and chemical messages from cell to cell.

Explanation:

The endocrine system uses hormones for communication and the nervous system uses electrical and chemical signals for rapid cell - to - cell communication, both crucial for internal coordination and homeostasis.

Answer:

Endocrine; Nervous