White blood cells function in blood clotting.
Answer the following statement true (T) or false (F)
False
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How many globin molecules are found in a single hemoglobin molecule?
A. 1 B. 6 C. 4 D. 8 E. 2
Several regions of the brainstem mediate autonomic responses. Which of the following is not mediated by these areas?
A) salivation B) defecation C) pupillary constriction D) blood pressure
What antibody does a person with type A blood produce?
A) Anti-A antibodies B) Anti-B antibodies C) Both Anti-A and Anti-B antibodies D) No antibodies are produced.
The reason a human may be paler when exposed to cold temperatures is
A. purely psychological. B. dehydration of the stratum corneum. C. constriction of the dermal collagen and elastic fibers. D. vasodilation has occurred. E. vasoconstriction has occurred.