Hormone Signaling. The glands of the endocrine system secrete hormones directly into the extracellular environment. The hormones then diffuse to the bloodstream via capillaries and are transported to the target cells through the circulatory system.
<span>your answer is, c. the glucose that is produced from them is vital to fuel most of the body's cells.</span>
In higher altitudes, air pressure decreases allowing the air in the balloon to expand more. if it was fully inflated, then the balloon would burst
