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Respiration and Circulation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYRespiration and Circulation2 Marks
Question
Give reasons : Atria are thin walled than ventricles.
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Answer

  1. Atria are receiving chambers, while ventricles are distributing chambers.
  2. The blood is driven out from ventricles.
  3. Ventricles are therefore, strong and with thicker walls.
  4. Atria are thin walled as compared to ventricles.

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