Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 13 PCB Single Correct MCQ
Published on: August 12, 2026

Identify the incorrect statement for class Cyclostomata.

A
All living members of this are ectoparasites on some fishes.
B
They have a sucking and circular mouth.
C
Their body is devoid of scales and paired fins.
D
They have an open type of blood circulation.

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The correct answer is:
D

• All the living members of class cyclostomates are ectoparasites on some fishes. They have a sucking and circular mouth and their body is devoid of scales and paired fins.

• Circulation is of closed type in cyclostomes.

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