________ are chemicals that are taken into the body and used to produce energy or provide building blocks for new molecules.
Fill in the blank(s) with the appropriate word(s).
Nutrients
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Parathyroid hormone is released by the thyroid gland and causes the small intestine to increase calcium absorption
Indicate whether this statement is true or false.
The contraction of the diaphragm and the external intercostal muscles begins inspiration. Explain exactly what happens, in terms of volume and pressure changes in the lungs, when these muscles contract
What will be an ideal response
Magnetic resonance imaging uses
A) a radio antenna. B) high-frequency sound waves. C) X rays. D) radioisotopes.
Permissiveness occurs when one hormone causes the loss of another hormone's receptors, reducing the effectiveness of the second hormone
a. True b. False Indicate whether the statement is true or false