C. A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normal.
Answer:
Energy is another word for "calories." Your energy balance is the balance of calories consumed through eating and drinking compared to calories burned through physical activity. ... People who are more physically active burn more calories than those who are not as physically active.
Explanation:
There are voluntary and involuntary muscle movements, put your hand on a hot stove for example and your reflexes generally do it for you. That is involuntary and movement produced by the nerves and nerve ending because of the pain that your nerve felt. The doing after telling the brain is something called motor function and the movement isn’t produced on reflexes and nerves alone, it’s a combination of your muscular system and brains motor function working together.
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Mitochondria make energy for the cell to work and function. The chloroplast turn sun light into chemical energy. I guess you could say, that they use each-others energy.
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