Sources of hormones in humans = the endocrine system [Fig. 37.2] 3. Target cells = cells with receptors for a given chemical messenger that can alter their activities in response to messenger.- Hormones are transported throughout the body by the blood, but they only elicit responses in target cells.. Do not diffuse into cells. b. Target cells have specific receptor for hormone on cell surface. c. Hormone binds to receptor and causes a second messenger to be released within the cell.
Definition of herder. : one that herds; specifically : a person who manages, breeds, or tends to livestock : herdsman 1.
drifter (Noun) A person who moves from place to place or job to job. drifter (Noun) A type of lightweight sail used in light winds like a spinnaker. drifter (Noun) A driver that uses driving techniques to modify vehicle traction to cause a vehicle to slide or power slide rather than drive in line with the tires. Suggested Resources (0.00 / 0 votes) Rate this definition: