The $Petromyzon$ belongs to:

  • A
    Chondrichthyes
  • B
    Osteichthyes
  • C
    Cyclostomata
  • D
    Amphibia

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Which of the following characteristics does not apply to a hagfish?

Which of the following animals lack jaws?

Which of the following sets of animals belong to the class $Cyclostomata$?

Statement $- I :-$ All living members of class $Cyclostomata$ are ectoparasites on some fishes.
Statement $- II :-$ $Cyclostomata$ have a sucking and circular mouth without jaws.

What do animals of the class Cyclostomata possess at the anterior end of their mouth?

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