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all fish have fisn unless their fins wear down which is usally caused by sickness disease and or the levels in your tank if this happens i recommend keeping an eye on it . it could cause death and spread to your other fish. if you but a small little glass tank and put some medicine in their it will be fine
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∙ 15y ago
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What are the differences between jaw less fish and cartilaginous fish?
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
What class do Cartilaginous fish belong to?
I believe the correct answer is Gnathostomat fish, with paired upper and lower jaw structures; and Agnath fish, which generally have only a toothy suction cup like upper jaw mouth structure.Taken from:http://en.wikipedia.org/wiki/Jaw
What is the scientific name of agnathans?
That is the scientific designation for " jaw-less fish. "
What is a bloodsucking fish with no jaw?
a lech
Are both jaws on a fish equally movable?
No, it is not because it does not really use the top jaw to move and chew with.
Where is the placement of fins on a jaw less fish and where are they located?
By the head
What are the differences between jaw less fish and cartilaginous fish?
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
What does fossil evidence indicate about the order in which these three vertebrates evolved a bony fish with a jaw a jawless fish and a fish with leglike fins?
hi
What is the most common fish name?
The answer is Jaw
Are shark fins sharp or dull looking?
Well, the sharks fins are not sharp. they are made of cartilage which the shark is mostly made of. Cartilage is what is in your nose and your ears. That is why they bend so easily. Not many fish have cartilage inside them. The fish that do are called, you guessed it, cartilaginous fish. There is also bony fish and jaw-less fish.
What is the scientific name of the bottom jaw bone of fish?
Dentary.
What class do Cartilaginous fish belong to?
I believe the correct answer is Gnathostomat fish, with paired upper and lower jaw structures; and Agnath fish, which generally have only a toothy suction cup like upper jaw mouth structure.Taken from:http://en.wikipedia.org/wiki/Jaw
What is the scientific name of agnathans?
That is the scientific designation for " jaw-less fish. "
What is the name of a eel shaped fish without a jaw that retains its notochord?
I think it is called a Lamprey.
Is a perch fish a bony fish or jaw-less fish?
A goldfish is a bony fish.
What is different about bony fish and jaw-less fish?
Booty but but
Do fish have jaw bones?
yes
