Fish have gills, that's what helps them breath underwater.
Yes, white sharks have gills that allow them to extract oxygen from water, which is how they breathe underwater. They need to constantly swim to ensure a flow of water over their gills for oxygen exchange.
No, sharks do not breathe air. They have gills that extract oxygen from the water as it flows over them, allowing them to extract oxygen from the water and breathe efficiently in their underwater habitat.
Yes. The tuna, like other fish, respire through their gills. Fish must have oxygen, and their gills are set up to make gas exchange to and from water.
Yes, you do need gills to breathe underwater. Gills process the water through them that makes the water allowed to go through the animal's body without drowning them. Gills are the only thing that keep the animals that live underwater, alive. they also don't make you breath the air in-you breath the oxygen in the water!
Pikes are fish equipped with gills for respiration. They extract oxygen from water by passing it over their gills, which allows them to breathe effectively underwater.
Because they breathe through their gills.
well yes they do 'breathe' underwater with their gills
Fish use gills to breathe underwater.
Yes they breathe through their gills using the oxygen in the water.
They can breathe, swim, and live underwater.
if they breathe underwater... <=< FISH
they can breathe and survive underwater.
I will assume you are not joking. A fish does not hold it's breath it can breathe underwater using its gills.
dolphins are mammals, not fish. They have lungs, not gills, and breathe air.
Their entire lives. They can breathe underwater, so they never have to come up.
fish breath under water because in water oxygen is mixed.
whales can breathe underwater that is why they live in water but sometimes they have to come up to breathe like fish