NEET UG BIOLOGY MCQ: ANIMAL KINGDOM

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Which of the following is/are not the characteristics of the class Osteichthyes?
(i)Body is streamlined and mouth is terminal.
(ii)Gills are covered by operculum.
(iii)Skin covered with cycloid and placoid scales.
(iv)Many of them are viviparous.

View answer and explanation

Correct option: B

(iii) and (iv)

Option B ((iii) and (iv)) is correct because Osteichthyes have cycloid/ganoid scales and are mostly oviparous, not viviparous.

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