Final answer:
The signals are transmitted via the circulatory system and are received by cells with specific receptors. Hormones, which are long-distance signaling molecules, only affect cells with matching receptors, initiating processes via the signaling pathway.
Step-by-step explanation:
These signals are passed through the circulatory system to arrive at a target organ, which has cells possessing the appropriate receptors. In biology, this process is known as endocrine signaling, which is a type of long-distance signal delivered by hormones. Hormones travel through an organism's circulatory system from the signaling cell to the target cell, and they only affect cells that possess the necessary receptors, allowing for cell-cell recognition and binding to form tissues.
Endocrine signals are important for maintaining homeostasis and coordinating various functions within the body. These hormones bind to specific receptors on the target cells, initiating a series of events known as the signaling pathway, which can result in a wide variety of cellular responses. This process of signal transduction ensures that the message carried by the hormone is accurately delivered and elicits the correct response.