they have gills, they can breathe underwater for up to 4 months at a time without coming up for air.
No, sharks don't have air sacs. Instead they have gills.
There is no such thing as an "air blubbler" in a shark.
Sharks do indeed float in seawater. They have an air bladder which assists them in their nautical excursions.
They do, they just use gills to extract the air in water.
no they have gills meaning they are fish not air breathers
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.
There are many differences between the shark and the dolphin. Sharks are cartilaginous fish whereas the dolphin is a mammal. Sharks take air in through their gills while dolphins breathe fresh air using their lungs.
yes, sharks take small oxygen bubles and breath them through there gills
no
i think that sharks could only be out of water for 4 sec. at most, sharks would die instantly by chasing a dolphin out of the water into the air.
It is taking in plankton for food or water for air in its gills
because sharks are a type of fish they can't live out of water. they have gills which retreive oxygen out of the water instead of the air