Home Biology Animal Kingdom Skill Builder Consider the following characteristic of fis…
Biology Animal Kingdom Skill Builder Single Correct MCQ
Published on: August 11, 2026

Consider the following characteristic of fishes:-

(i) They have four pairs of gills which are covered by an operculum.

(ii) They have air bladder which regulates buoyancy

(iii) They are mostly viviparous and development is direct

(iv) Their body is streamlined and covered with cycloid/ctenoid scales

Which of the above characteristics regarding bony fishes are correct?

A
i, ii and iii
B
iii and iv
C
i, ii and iv
D
ii alone

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