Question

What does a fish do in terms of volume and density to come up?

Answer 1

Explanation:

Most fish do this with something called a swim bladder. ... To reduce its overall density, a fish fills the bladder with oxygen collected from the surrounding water via the gills. When the bladder is filled with this oxygen gas, the fish has a greater volume, but its weight is not greatly increased.

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Answer 2

Explanation:

Explanation: Most fish do this with something called a swim bladder. ... To reduce its overall density, a fish fills the bladder with oxygen collected from the surrounding water via the gills. When the bladder is filled with this oxygen gas, the fish has a greater volume, but its weight is not greatly increased.

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