Most fish do not sink in water because of the presence of
(1) swim bladder
(2) air bladder
(3) air sacs
(4) air in spongy bones
Which of the above options are right:
A) I & II
B) II & III
C) III & IV
D) I, II, III & IV
Answer: A) I & II
Most fish do not sink in water because of the presence of
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Most fish do not sink in water because of the presence of
(1) swim bladder
(2) air bladder
(3) air sacs
(4) air in spongy bones
Which of the above options are right:
A) I & II
B) II & III
C) III & IV
D) I, II, III & IV
Answer: A) I & II