Answer:
True
Explanation:
The process of fainting is caused by a lack of oxygen to the brain. This can be caused by strenuous exercise (where blood is pooled more in the extremities of the body), stopping breathing (where no oxygen can enter the lungs and be transported to the brain), among other things.
During exercise, the muscles in the body's extremities need to move more, therefore they require more energy, the cells make that energy using oxygen, and therefore blood is directed more to the extremities during exercise.
Answer:
true because one path is through the right atrium and right ventricle. The right atrium receives oxygen-poor blood from the body. It pumps the blood into the right ventricle.
Explanation:
A group of cells would form an organ.
Answer:
False
Explanation:
Cramming for an example is different than in-depth studying. Usually, if you want to retain information cramming isn't the way to go.
