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____ is always ____, while ____ may be ____.
Q9: Research on HIV vaccines is progressing, but
Q12: During muscle contractions,<br>A) the sarcomeres shorten.<br>B) the
Q32: Most birds are _; most mammals are
Q42: The antidiuretic hormone<br>A) promotes processes that lead
Q47: Delivery of bile into the small intestine
Q56: The primary thermostat of the body is
Q57: _ and _ are released by neurons
Q67: Binding of a protein hormone may lead
Q82: adrenal medulla
Q97: bile