Home Biology Animal Kingdom Statement Based Questions Which of the following class is being correc…
Biology Animal Kingdom Statement Based Questions Single Correct MCQ
Published on: August 21, 2026

Which of the following class is being correctly described given statements (i-iv)?

(i) All living members of this class are ectoparasites on some fishes.

(ii) They have a sucking and circular mouth without jaws.

(iii) Circulation is of closed type.

(iv) They are marine but migrate for spawning to fresh water. After spawing, within a few days they die.

A
Cyclostomata
B
Chondrichthyes
C
Osteichthyes
D
Amphibia

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