Question

oxygen dissolved in water is important for aquatic plants and animal . give reasons.

Answer 1

Fishes have gills which can helps only in deriving oxygen out of the dissolved air present in water and hence fishes cannot live without it... (when I refer to fishes as an example, I mean all aquatic animals which respire in water)

And certain plants are also accustomed to respiring the dissolved oxygen and having its mechanism specific for the environment....

hope it helps...!

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Answer 2

Hi mate

Question

Oxygen dissolved in water is important for aquatic plants and animal . give reasons.

Answer

• Gaseous oxygen, normally configured as O2, is soluable in water.

• So is Carbon Dioxide, CO2. Underwater plants take in dissolved CO2 from the water and release O2 into the water.

• Fish take in dissolved O2 through their gills and release CO2 through their gills.

• There is also a lot of exchange of O2 and CO2 at the waters surface that is exposed to the atmosphere.

• 3/5ths of the worlds oxygen production is done in the earths oceans by algae.

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