Question on: JAMB Biology - 2023
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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
A
II and III are correct
B
I and II are correct
C
I, II, III and IV are correct
D
III and IV are correct
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Correct Option: B
Fishes do not sink in water primarily due to the presence of a swim bladder (option I) or air bladder (option II). These structures help control the fish's buoyancy in the water. Air sacs (option III) and air in spongy bones (option IV) are not typically associated with buoyancy control in fishes.
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