Question

the special organ in fish that help to adjust it average density to allow for remaining afloat in water​

Answer 1

Gills

I think.

Hope this will helpfull to u.

Answer 2

Answer:

hlo dear ♥️

Explanation:

Most fish do this with something called a swim bladder. A swim bladder is just an expandable sac, like a human lung. To reduce its overall density, a fish fills the bladder with oxygen collected from the surrounding water via the gills.

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