Check sibling questions

What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?

Answer

  • Aquatic organisms take in dissolved oxygen form in water. 
  • Terrestrial animals breathe in the oxygen from atmosphere
  • The amount of oxygen in water is limited .
  • This means that the rate of respiration of aquatic animals has to be much faster than terrestrial animals for them to get sufficient amounts of oxygen.
  • A terrestrial animal on the other hand, breathes in oxygen directly from the atmosphere which is much larger in amount.
  • Terrestrial animals hence get sufficient oxygen without having to breathe fast.

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo