Final answer:
Endocrine signaling is the process by which hormones travel through the bloodstream to target cells and cause changes within the cells.
Step-by-step explanation:
Hormones travel the large distances between endocrine cells and their target cells via the bloodstream. This type of signaling is known as endocrine signaling. Hormones are chemical messenger molecules that are produced in one area of the body and have an effect on another area. They travel through the blood until they find their target cells with matching receptors, where they cause changes within the cells.