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How can fishes breathe underwater?

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  • Because they have filters in their eyes.
  • Because they don't need oxygen.
  • Because they have gills.
That's Correct!
It's Wrong!

Fishes are able to breathe underwater because they have gills. Gills are specialized organs that extract oxygen from water, allowing fishes to extract oxygen and release carbon dioxide. These gills are located on the sides of their heads and are made up of thin filaments that have a large surface area. As water flows over the gills, oxygen is extracted and absorbed into the bloodstream, while carbon dioxide is released. This process allows fishes to obtain the necessary oxygen for their survival in an aquatic environment.

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