Stretching of the cervix causes oxytocin secretion to
A. increase.
B. decrease.
A
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Functions of proteins include
A. providing structural strength in connective tissue. B. serving as a part of the cholesterol molecule. C. serving as the primary energy source of cells. D. transport of nitrogen gas in the blood. E. padding and insulation.
The figure illustrates the autonomic reflexes and the heart. What does "B" represent?
A. Vagus nerve B. Increase in blood pressure detected by carotid baroreceptors C. Glossopharyngeal nerve D. Sympathetic nerve E. Decrease in blood pressure detected by carotid baroreceptors
Functionally, carbohydrates are most important as
A) storage of glucose molecules. B) a part of nucleic acid structure. C) sources of energy. D) receptors of the cell surface. E) insulation under the skin.
The organelles that are the “protein factories” for the cell are the:
a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles