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with gills; they're fish!
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∙ 14y ago
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What are three main groups of fishes?
Class Agnatha
How do agnatha animals breathe?
through holes in there body. who knows what ones... probably all of them....
How do the agnatha breathe?
they have seven gills made of cartilage which are attached onto modified lungs
Are Lampreys and hagfishes are examples of what kind of fishes members of the class Agnatha?
jawless fishes
Why are fish from the class Agnatha considered primitive?
Agnatha means 'no jaws', and they really don't have jaws, although they do have teeth. They also have no stomach, and no boney skeleton. Their skeleton is cartilagineous, like the elasmobranchs.
Do fish have keratin?
Fishes of class AGNATHA (myxini) have tooth-like structures that are composed of KERATIN..
How many classes come under the subphylum Vertebrata?
Class Agnatha (jawless fish)Class Chondrichthyes (cartilaginous fishes)Class Osteichthyes (bony fishes)Class Amphibia (amphibians)Class Reptilia (reptiles)Class Aves (birds)Class Mammalia (mammals)
What is the class of a vertebrates that breathe through their lungs and their skin?
how do birds breathe
Which class of fishes does a lamprey belong?
Lampreys are in the superclass Agnatha, jawless fish. They are of the class Cyclostomata, which includes hagfish, as opposed to the extinct Ostracoderms.
Are Agnatha internal fertilized?
Externally
Do class of agnatha have side fins?
yes they do its preety awsome that they dont cause u guys dont now tht so u have to search it up :p
Does agnatha have ectoderm or endoderm?
Agnatha are ancient jawless fish that include lampreys and hagfish. They are also probably the earliest vertebrates and have ectoderm.
