The answer is <em>C.) The stethoscope was invented because the physician did not want to pt his head on women's' chests to listen to their heart and lungs.
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<em />The physician saw a problem (that he didn't want to place his head on women's chests to listen to their heart and lungs), so he solved it by inventing a stethoscope.
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I hope this helped!! :)) Have a blessed day!
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Answer:
the study of the structure, reaction, and composition of different kinds of substances
Explanation:

The main factor that controls the rate of breathing is..
A.) concentration of carbon dioxide.
If we think about it.. When we breath in oxygen, right away it enters your lungs and turns into carbon dioxide. Well since your lungs need to process oxygen and bring oxygen into the blood stream. Then as soon as the oxygen comes inside (inhale) the oxygen turns into carbon dioxide and you breath it out (exhale) to get a new oxygen load.
Makes sense? lol
Good Luck! :)
Answer:
Up to 10 percent.
Explanation:
Thermic effect of the food may be defined as the amount of the energy expand above the BMR due to the food storage and its processing. The thermic effect of the food can be increased by the aerobic exercises.
The production of the heat by the adipose tissue is also involved in the thermic effect. The estimates used for the food thermic effect is around 10% of the individual's calorie intake and may also depends on the effect of the different food components.
Thus, the answer is up to 10 percent.