20. ventricles are the chambers of the heart. a. bottom b. top c. smaller d. middle

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Select the correct answer from each drop-down menu proteins are

What are two examples of conduction that we use everyday