AP BIOLOGY

Detailed explanation-1: -Endocrine signaling is an example of long distance communication between hormone producing cells, tissues and glands and cells that express hormone receptor molecules.

Detailed explanation-2: -Endocrine Signaling: To send messages across long distances, cells use this method. Endocrine signals travel through the bloodstream to reach target tissues and cells. Signals that originate in one part of the body and travel to their target through the bloodstream are called hormones.

Detailed explanation-3: -There are four categories of chemical signaling found in multicellular organisms: paracrine signaling, endocrine signaling, autocrine signaling, and direct signaling across gap junctions.

Detailed explanation-4: -Cell signaling is the process of communication between the cells of the body. It follows a ‘simple’ three-step sequence. Let’s imagine that cell A wants to get a message to cell B. Cell A secretes molecules that carry this message or signal.