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Q5: Layers through which gases must diffuse in
Q10: A hormone that stimulates the secretion of
Q14: What is the term for the most
Q30: The membrane that lines a body cavity
Q31: When stronger muscle contraction is needed to
Q35: The rings that form the framework of
Q40: Most,about 70%,of the circulating lymphocytes are<br>A) T-lymphocytes<br>B)
Q44: The average life of an erythrocyte is<br>A)
Q47: If a mixture of gases has a
Q74: The body's ability to counteract the effect