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How do fish obtain oxygen?

a- Oxygen diffuses across their skin.
b- Their body cells break down water molecules (H2O) and release the oxygen.
c- They inhale oxygen at the surface of the water.
d- They take in oxygen gas dissolved in the water through their gills.

Respuesta :

d- They take in oxygen gas dissolved in the water through their gills.
epaige328

Answer:

thanks it's D) They take in oxygen gas dissolved in the water though their gills.

Explanation:

thanks...

I got it right!

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