ventilation mechanism in fish

Cards (11)

what happens to the mouth when water flows in 
it opens
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what happens to the operculum when water flows in 
it closes
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what happens to the floor of the buccal cavity when water flows in 
it lowers
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what happens to the volume when water flows in 
it increases
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what happens to the pressure when water flows in 
it decreases
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what happens to the mouth when water flows out 
it closes
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what happens to the operculum when water flows out 
it opens
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what happens to the floor of the buccal cavity when water flows out 
it rises
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what happens to the volume when water flows out 
it decreases
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what happens to the pressure when water flows out 
it increases
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what is the definition of ventilation 
This is the movement of air in and out of the lungs.
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