3. Which of the following parts of the human body is most complex? A.
heart
B.
kidney
C.
white blood cell
D.
central nervous system

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

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Kendra has the ability to cover a distance in a short period of time. she is said to have a lot of agility power strength