Answer:
A. Negative feedback mechanism
It can effect the human brain the most, It can make you numb and make you see things, You will not be able to remember what you did depending on the amount you smoke.
The arteries in the image appear red because they are carrying oxygenated blood to the body. That is option B.
<h3>What is an artery?</h3>
An artery is known to be vessels that are surrounded by smooth muscles whose major function.is to distribute oxygenated blood from the lungs.
The blood is oxygenated in the lungs and is transported to the heart where it is then pumped to the whole body through the aorta.
Therefore, the arteries in the image appear red because they are carrying oxygenated blood to the body.
Learn more about blood vessels here:
brainly.com/question/25149738
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Dyspnea should be the correct answer
hope I helped !!
