A countercurrent heat exchanger called the __________ allows bluefin tuna to keep swimming muscles several degrees warmer than tissues near the surface of the body.
A) glomerulus
B) Meissner network
C) rete mirabile
D) Pacinian corpuscle
E) portal system
Correct Answer:
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Q1: Most reptiles are almost completely ectothermic; they
Q2: Among vertebrates,_ are examples of endotherms.
A)birds and
Q4: In addition to the usual problems of
Q5: _ allowed some animals to invade habitats
Q6: The movement of air or a liquid
Q7: Which of the following is NOT a
Q8: The generation of heat by shivering is
Q9: Loss of heat from a surface water
Q10: Invertebrates that have low metabolic rates and
Q11: Which type of insect is capable of
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