[Campbell Biology P.990] Which of the following statements correctly describes a method of g... | Practice Question
Which of the following statements correctly describes a method of gill ventilation in the animals mentioned in the text?
A: Crayfish use coordinated movements of the mouth and gill covers to pump water over their gills.
B: Mussels and clams ventilate their gills by taking in and ejecting water through jet propulsion.
C: Octopuses and squids use paddle-like appendages to drive water currents over their gills.
D: Fishes typically use the motion of swimming or coordinated movements of the mouth and gill covers for ventilation.
Explanation
The text states: 'Fishes use the motion of swimming or coordinated movements of the mouth and gill covers to ventilate their gills.' Other options describe ventilation methods for different animals or incorrect pairings.