Like other fish sharks extract oxygen from sea water as the seawater passes over the shark's gills
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.
Dolphins breathe with lungs while sharks breathe with gills.
Some sharks, but not all.
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.
Like all sharks ( like fish), whale sharks breathe through gills which extract oxygen from the water.
Sharks breathe with gills, just like any other fish. Dolphins are mammals, they breathe with lungs. They can't breathe under water. But they're really good at holding their breath, so they only need to surface every few minutes for a new breath.
Gills
They have gills on the side of their head
They don't sleep. Great White Sharks need to move to breathe. although they do rest.
YesThey do breathe because the shark stays in the water for a long time.
Sharks have gills on the side of there neck to filter oxygen from the water :]
This is actually not true at all times or for all sharks. It is true that most sharks need moving water in order to breathe, but there are underwater currents where sharks can stop, because the water is moving around them.