Answer: A. Epinephrine functions as a hormone in the endocrine system and as a neurotransmitter in the nervous system.
Explanation: Epinephrine can act as a hormone and also as a neurotransmitter. Epinephrine can also be referred to as adrenaline.
The adrenaline is a hormone that is secreted mainly by the medulla of the adrenal glands and the Epinephrine primary function is to increase cardiac activities and also to increase the level of glucose in the blood. Its actions vary by tissue type and tissue expression of adrenergic receptors. Epinephrine acts on nearly all body tissues.
It should be C! (: Fate mapping because it is used do dermine tissue linage!
While Differentiation is used when one cell type changes from one cell to another.
When it comes to the process an undifferentiated cell is already programmed to become a specific cell type by following a specified path towards cell differentiation.
I hope all is well, and you pass! (: Good luck, rockstar! If you need any further information, let me know. (: