why do fishes open and close their mouth so frequently when swimming i

1.	why do fishes open and close their mouth so frequently when swimming in water
Answer» They are breathing through their mouths. Fish require a steady flow of water through their gills to be able to extract oxygen from it; the easiest way to make the water flow is to suck it in through their mouths and squeeze it out past their gills. thanks didi 😄😄

why do fishes open and close their mouth so frequently when swimming in water

Answer»

They are breathing through their mouths. Fish require a steady flow of water through their gills to be able to extract oxygen from it; the easiest way to make the water flow is to suck it in through their mouths and squeeze it out past their gills.

thanks didi 😄😄

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why do fishes open and close their mouth so frequently when swimming in water

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