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Question 19 [Assertion Reasoning] - CBSE Class 10 Sample Paper Science Solution - For 2023 Boards - Solutions to CBSE Sample Paper - Science Class 10

Last updated at August 2, 2026 by

Assertion: Amphibians can tolerate mixing of oxygenated and deoxygenated blood.

Reason: Amphibians are animals with two chambered heart

 

Answer:

  • Amphibians can tolerate mixed blood as they have lower energy and oxygen requirements . 
  • This mixed blood is pumped through the body with a 3 chambered heart . 

Chambers of heart in different species-01.jpg

Hence, the correct answer is (c) A is true but R is false

 

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