Question

question #17: 17 responsible for receiving and sending electrical messages throughout the body a) nervous system b) respiratory system c) immune system d) excretory system

Explanation:

The nervous system is responsible for receiving and sending electrical - chemical messages (neural impulses) throughout the body. The respiratory system is for gas exchange, the immune system is for defense against pathogens, and the excretory system is for removing waste.

Answer:

A. Nervous System