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Most organisms, except for some such as anaerobic bacteria, respire oxygen. Fish have gills, gills have the ability to take the oxygen out of the molecule H2O.
Fish have gills, which filter out the oxygen from the water. However, they can't breath out of water.
A fish doesn't have lungs, it has gills, so it doesn't breathe in water really.
Fish breathe under water by using their GILLS
to survive
Gills pull oxygen from the water but they can't breathe out of the water because the other chemicals in the air.
Wiki User
∙ 6y ago
Wiki User
∙ 10y agoFishes gills are made to sort out the oxygen from the water so the fish can breath. That's why fish tanks have to have oxygen
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Are there animals that really breathe fire?
Fish breathe oxygen, which they extract from the water with their gills.
Can sharks breathe air?
No. Sharks are fish, they breathe water through their gills.
How do fish breathe underwater?
Fish have gills, that's what helps them breath underwater.
How do fish breath if there was no o2 in water?
Yes. The fish does not use its mouth to breathe. It uses its gills.
Why is water important to fish?
because fish need it to breathe. just like humans need air to breate. to fish, water is air.
How do fish breathe under water?
They use their gills to breathe under water.
What animals breath through gills?
Most fish do... unlike the betta fish they can breathe water and air. Dolphins and whales are an example of ones that breathe only air. Sharks, gold fish and other fish have to breathe water.
Are there animals that really breathe fire?
Fish breathe oxygen, which they extract from the water with their gills.
Why do fish live in water instead of land?
Fish have evolved to breathe in the water.
Can manta rays breathe out of water?
No, they are fish and must be in the ocean to breathe.
Why are you not a fish?
Because fish have gills, and breathe water- and I cant!
What do American paddle fish breathe from?
WATER
Why can fish breathe under water?
they have gills
Could whales breathe in water?
whales can breathe underwater that is why they live in water but sometimes they have to come up to breathe like fish
Why does a fish die when it is taken out of water?
they cannot breathe out of water.
Do fish breathe under water?
well yes they do 'breathe' underwater with their gills
How do fish brathe?
fish breathe by gulping water , using air in it.
