Sample Questions — Class – Osteichthyes
Try 5 questions below from Class – Osteichthyes. Get all 20 in the MedicNEET app.
MCQ
Which of the following combinations is correct for Osteichthyes?
✅ Correct Answer: B
Bony fishes have external fertilisation, cycloid scales, and operculum.
MCQ
Which of the following functions is performed by the operculum in Osteichthyes?
✅ Correct Answer: D
Operculum protects the gills from damage and assists in respiration.
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MCQ
Which one of the following features distinguishes Osteichthyes from Chondrichthyes?
✅ Correct Answer: C
Chondrichthyes lack air bladder, which helps buoyancy in Osteichthyes.
MCQ
Select the correct statements about Osteichthyes:
I. They have cartilaginous skeleton
II. Heart has two chambers
III. Fertilisation is external
IV. Air bladder is present
✅ Correct Answer: C
Skeleton is bony and not cartilaginous in osteichthyes, heart has 2 chambers, fertilisation is external, air bladder present.
MCQ
Why are bony fishes able to regulate buoyancy, unlike sharks?
✅ Correct Answer: C
Swim bladder helps in maintaining neutral buoyancy, which cartilaginous fishes lack.
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