Final answer:
Long-distance cell signaling is referred to as endocrine signaling, which employs the circulatory system to transport hormones to distant target cells.
Step-by-step explanation:
Cell signaling over a long distance is known as endocrine signaling. Endocrine signaling enables cells to communicate through the circulatory system, where hormones are released by signaling cells and carried to target cells throughout the body. Unlike paracrine signaling, which communicates over short distances, or autocrine signaling, where the signaling cell targets itself, endocrine signals travel much further to reach their destination. This type of signaling is critical for coordinating widespread bodily functions.
Cell signaling over a long distance is known as endocrine signaling. In endocrine signaling, the signaling molecule, or ligand, is released from a signaling cell into the bloodstream, where it can travel throughout the body and reach the target cell. This allows for communication between cells that may be far apart from each other. An example of endocrine signaling is the release of hormones from the endocrine glands, such as the thyroid gland or the pituitary gland, that regulate various physiological processes in the body.