Answer:
Adrenaline
Explanation:
The adrenaline glands, located on top of both kidneys, are glands that produce hormones to regulate blood pressure, bodily functions, metabolisms, etc. Adrenaline is released whenever the blood is redirected towards the muscles, causing surges of energy. In general, adrenaline increases blood flow in your body, which causes the heartbeat to increase, or give the feeling of a racing heart. Between the football players and the heartbeat rate, they are getting rushes of adrenaline from either participating in the game or cheering on their team from the sidelines. Hope that made sense.
<span>Cell bodies of preganglionic neurons reside in the brain stem or spinal cord. Preganglionic neurons stimulate postganglionic neurons. i think hope it helps X)</span>
A desert would be a good example because there is no exact source of water there unless you are in a specific one.
"temperate desert, tropical
<span> rain forest temperate desert, temperate tundra</span>" all tend to be found in the temperate parts of the world, although others exists in these areas as well.
C. Experimental data that support the conclusion
