Answer:
A. Preganglionic sympathetic fiber
Explanation:
The fibers of the central nervous system (CNS) that innervate the parasympathetic ganglia are referred to as preganglionic fibers. For example, preganglionic nerves are found in the airways, and function for controlling the breathing movement. Both parasympathetic and preganglionic sympathetic fibers use acetylcholine as neurotransmitter (i.e., they are cholinergic fibers) and are myelinated. Moreover, different vasoactive mediators including histamine and prostaglandin are able to improve ganglionic cholinergic transmission.
Answer:
It is an unconcious process
Explanation:
Homeostasis is when the body is made sure to have a constant environment inside so that the body can work at it's optimum conditions .... constant temperature, constant pH etc ... you do sweat when you feel hot but you can't control it... your mind just tells it to... vadodilation and vasoconstriction for a constant temperature occurs for a constant temperature as well(when vessels dilate and constrict), your mind allows the vessels to do so without you thinking about it.
In both cases the electron transport chain<span> uses the energy to pump hydrogen ions across a membrane</span>
Mesozoic Era is the second of the Earth's major era geologically of the Phanerozoic time. It means middle life in Greek. The climate during this time was warm and had less difference in the temperature today thus the answer is a. About as warm as present.