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Respiration and Circulation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYRespiration and Circulation2 Marks
Question
What are the main features of respiratory surface?
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Answer

The respiratory surface, for the efficient gaseous exchange should have the following features:

  1. It should have a large surface area.
  2. It should be thin, highly vascular and permeable to allow exchange of gases.
  3. It should be moist.

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