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Jermain_ Jermain_
wrote...
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Posts: 6410
10 years ago

 
Tidal ventilation is   
A)
 
when the ventilatory medium moves in and out of the respiratory chamber.   
B)
 
bulk flow of water across the respiratory surfaces of cnidarians.   
C)
 
the movement of water over the gills in most fish.   
D)
 
when the partial pressure of oxygen in the medium is variable in a diurnal rhythm.   
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wrote...
10 years ago
Choice D
Jermain_ Author
wrote...
On Hiatus
10 years ago
Thanks.
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