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Use the figure above to answer the following questions.
-Oxygen-poor blood circulates through
Q2: Rhythms that are repeated every 24 hours
Q4: This structure is found in the compound
Q17: Bacteria in the intestinal tract prevent pathogens
Q20: This bone connects to the femur.
Q22: The space between the two membranes of
Q25: As few as _ Escherichia coli O157:H7
Q39: The source of diversity for B and
Q54: The SA node, also known as the
Q55: The requirement of cold weather before a
Q74: Helicobacter pylori has been associated with:<br>A) emphysema.<br>B)