JAMB - Biology (2023 - No. 16)
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
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
Explanation
Fishes have a swim bladder or air bladder which helps them to remain buoyant without sinking in water. They are present in the body cavity.
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