In times of stress the sympathetic nervous system stimulates the adrenal medulla which then secretes catecholamines. The catecholamines includes; Dopamine, epinephrine and norepinephrine. Catecholamines are made by nerve tissue, the brain, and the adrenal glands. They help the body respond to stress or fright and prepare the body for "fight or flight" reactions.
The primary function of red blood cells is to carry oxygen from the lungs to the body tissues and carbon dioxide away from the tissues and back to the lungs.
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In the Andes, at elevations of 12,000 feet, Darwin collected fossilized marine shells. The existence of marine shells at this altitude provided evidence that the deposit had been gradually uplifted to its present location.
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Answer:
Evaporation allows water to enter the atmosphere.
Explanation:
The earth's rotation on its axis is not responsible for causing weather.
<h3>What is weather?</h3>
Weather is defined as the atmospheric condition of a place over a short
period of time. It is dependent on factors such as the following:
- Atmospheric pressure etc.
The earth's rotation on its axis is however responsible for the day and night
experienced in all parts of the world and is not responsible for determining
the weather of a place.
Read more about Weather here brainly.com/question/12455866
