Biology, asked by unknwnprsn1989, 1 year ago

what is cyclostomata????

Answers

Answered by nishthapardesi2005
3

Cyclostomes are jawless vertebrates. They are  characterised by having an elongated eel-like  body, circular mouth, slimy skin and are scaleless. They are ectoparasites or borers of other vertebrates. Petromyzon (Lamprey) and  Myxine (Hagfish) are examples.

Answer from NCERT 2019- 2020 version...

Answered by apm43
1

Cyclostomata is a group of agnathans that comprises the living jawless fishes: *the lampreys and hagfishes.

Cyclostomata is a group of agnathans that comprises the living jawless fishes: *the lampreys and hagfishes.* Both groups have jawless mouths with horny epidermal structures that function like teeth, and branchial arches that are internally positioned instead of external as in jawed fishes.

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