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Do sharks need to come for oxygen often?
Sharks do not need to come up for air - they are fish with gills.
Why do sharks die if they don't move?
Some sharks would drown but other sharks can pump water over their gills so they don`t need to swim. Some sharks lie in wait for their prey to come to them.
How do shark reproduction differ from fish reproduction?
Sharks can't pump water over thier gills only fish do.
How do sharks breathe underwater?
Using gills because sharks are fishes and if look closely on animal planet-sharks you will see that there are like cuts on the left or right of their head,well that is gills and sharks uses it to breathe it takes in oxygen and gives out carbon dioxide----------------------------------------------------------------------Sharks "breathe" by using their gills. Water passes through the mouth and out the gill slits. Oxygen is exchanged through the tissues lining the gills.Unlike other fish SOME SPECIES of shark cannot pump water through their gills by opening and closing their mouths, they have to keep moving to make the water flow. In this way they are like ram jets. For a shark it is "Swim or die!"However, OTHER SPECIES of sharks can pump water over their gills when at rest and do not need to keep swimming. These species can be seen sleeping on the seabed around tropical reefs.Gills.sharks breath through there gills. if you look up a picture of a shark with its mouth open yiou can see the gills at the side of the sharks mouth.hope i helped youIt's a fish.. it has Gills.
Why do most sharks have to swim all day or they will die?
Sharks do not have the ability to pump water across their gills, therefore they need to continue swimming to move water across their gills so they can breath
What shark can stop swimming and live?
Some species of sharks, like the nurse shark and the lemon shark, have the ability to pump water over their gills while stationary, allowing them to breathe without constant movement. This adaptation is known as buccal pumping and enables these sharks to rest on the ocean floor and still obtain oxygen.
Does a fish drown if you pull it backwards in the water?
Sharks cannot swim backwards. Unlike the fins of telelosts (bony fish), sharks' pectoral fins do not bend upwards, and so they are unable to back up. Sharks are also unable to stop swimming suddenly.
Do sharks sleep standing still?
The majority of sharks cannot sleep inanimately as they lack special gills that keep the water moving through them so that they can breathe. As always, there are exceptions, one of which is the nurse shark.
Do sharks need to come up for air?
No, sharks do not need to come up for air like other marine animals do. They have a specialized respiratory system that allows them to extract oxygen from the water using their gills. Sharks need to keep moving to ensure water flow over their gills for respiration.
Why are cartilaginous fish such as sharks constantly moving?
If sharks did not move then they would die, when they move its like they are breathing, I know we dont do it but they are sharks ya know xD
Why do sharks swim with their mouth open?
Many fish swim with their mouths open. They swim with their mouths open because the water goes into their mouths and out their gills, which is how they breathe.
What do fish pump water through?
their gills
