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Q:

The rate of respiration is much faster in aquatic animals/organisms than in terrestrial animals. To whom can the credit be given for this?

  • 1
    more amount of dissolved oxygen in water than the amount of oxygen in the air
  • 2
    more amount of oxygen in the air than the amount of oxygen dissolved in water
  • 3
    presence of gills in aquatic animals
  • 4
    less amount of dissolved oxygen in water as compared to the amount of oxygen in the air
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Answer : 4. "less amount of dissolved oxygen in water as compared to the amount of oxygen in the air"

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