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

Most fish do not sink in water because of the presence of:
I. swim bladder
II. air bladder
III. air sacs
IV. air in spongy bones Correct Answer I and II are correct

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.

Related Questions

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