The nose is divided into right and left halves called the nasal ________.
A. apertures
B. cavities
C. vestibules
D. septa
E. fossae
Answer: E
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All of the following hormones are synthesized by the pituitary gland except
A. prolactin. B. growth hormone. C. thyroid-stimulating hormone. D. calcitonin. E. luteinizing hormone.
Nursing babies obtain some immunity by intestinal absorption of antibodies found in their mother's milk. This process requires the movement of intact antibodies from the lumen of the intestine into the blood. This process involves a combination of
a. endocytosis. b. exocytosis. c. cotransport carriers. d. endocytosis and cotransport carriers. e. endocytosis and exocytosis.
The absolute refractory period
A) limits how many action potentials can be produced during a given period of time. B) prevents the membrane from starting another action potential at the same point and time. C) is the period of time when a strong stimulus can initiate a second action potential. D) both A and B. E) all of the above.
Molecules that bind to a cell's receptor and trigger a response, resulting in some kind of action or biologic effect, are called:
A) agonists. B) mediators. C) antagonists. D) neurotransmitters.