The rectal gland of sharks is involved in the excretion of:
A) urea.
B) sodium chloride.
C) calcium and magnesium.
D) trimethyamine oxide.
E) carbon dioxide.
Correct Answer:
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Q6: A defense mechanism of hagfish is _.
A)
Q7: What characteristic does not describe a vertebrate?
A)
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Q9: The skin of sharks is covered with
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Q12: The claspers of cartilaginous fishes are used
Q13: The neuromast cells are part of the
Q14: Sharks obtain neutral buoyancy by producing an
Q15: Neuromast cells are associated with the _
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