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Question

Presence of the gills helps fishes in _____.

A
absorbing nutrients
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B
floating
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C
storing food
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D
breathing underwater
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Solution

The correct option is D breathing underwater
  • In fishes, gills are their respiratory organ and are richly supplied with blood vessels.
  • Water taken in continuously through the mouth passes over gills.
  • Oxygen dissolved in water diffuses into their blood through these blood vessels.

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