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During exhalation, the chest cavity ____ in size, which causes air pressure in the lungs to ____.
Q2: The synthesis and secretion of _ is
Q31: An example of an animal with a
Q43: Prostaglandins are _.<br>A) protein molecules that act
Q45: A _ joint can move rotate about
Q46: The frozen contraction of muscle cells called
Q47: Which group of organisms has a pattern
Q48: A typical human body has _ bones.<br>A)
Q48: The two proteases in the small intestine
Q64: The inferior vena cava moves blood from
Q75: Which physiological process allows many organisms to