Some people purchase melatonin as an over-the-counter medication. For what specific purpose?
A) growth of hair and nails
B) calcium supplement
C) increase metabolism
D) sleep aid
E) blood glucose regulation
D
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The hormone most important in supporting the maturation of the oocyte and growth of the uterine lining is
A) LH. B) estradiol. C) progesterone. D) progestin. E) None of the answers are correct.
Somatic reflexes involve ______________________________________ muscles
Fill in the blank(s) with correct word
During internal respiration, the exchange of the respiratory gases takes place between which of the following?
a. the pulmonary capillaries and the interstitial fluid that surrounds the cells b. the pulmonary capillaries and air within the alveoli c. the systemic capillaries and the interstitial fluid that surrounds the cells d. all of the listed responses are correct
Microtubules
A. are a component of mitochondria. B. are the smallest components of the cytoskeleton. C. provide structure and support to the cytoplasm. D. contain the protein myosin. E. are solid, supporting rods of protein.