Fish and crustaceans are similar in that both use _____________ for gas exchange.
A) tracheal tubes
B) gills
C) the walls of the mantle cavity
D) the moist surface of their skin
Correct Answer:
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Q2: Most simple invertebrates obtain their oxygen by
Q3: When is the PO2 an especially strong
Q4: What change would increase the rate of
Q6: Q7: Ciliated gills in clams, sharks continuously Q8: The exchange of gases across a respiratory Q9: In tissue capillaries, _ combines with water Q10: Imagine that you have been transported light Q10: Which blood vessels carry oxygenated blood? Q11: The large number of alveoli in
A)pulmonary veins
B)systemic
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