Most fishes do not sink in water because of the presences of: I. swim bladder II. air bladder III. air sacs IV. air in spongy bones

Question 1 Report

Most fishes do not sink in water because of the presences of:
I. swim bladder
II. air bladder
III. air sacs
IV. air in spongy bones

II and III are correct

I and II are correct

I, II, III and IV are correct

III and IV are correct

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