Sample Questions — Class – Cyclostomata
Try 5 questions below from Class – Cyclostomata. Get all 10 in the MedicNEET app.
MCQ
Why are Cyclostomes considered primitive vertebrates?
✅ Correct Answer: A
Their structural simplicity, including absence of jaws, makes them primitive vertebrates.
MCQ
Why are Cyclostomes considered jawless vertebrates despite having a vertebral column?
✅ Correct Answer: C
Cyclostomes have a circular, jawless mouth adapted for sucking. Their jawless nature is the defining characteristic that places them in Agnatha.
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MCQ
How does absence of paired fins affect the locomotion of Cyclostomes?
✅ Correct Answer: B
Paired fins provide balance and direction in fishes; their absence makes cyclostome movement less controlled.
MCQ
What justifies classifying Lampreys and Hagfishes under Cyclostomata?
✅ Correct Answer: D
Both groups share a circular jawless mouth, the defining feature of Cyclostomata.
MCQ
Why are Cyclostomes not considered true fishes despite living in aquatic habitats?
✅ Correct Answer: A
True fishes possess jaws and scales, which are absent in Cyclostomes.
Practice All 10 Questions from Class – Cyclostomata
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