Question 21 (Choice 2) - Biology - CBSE Class 12 Sample Paper for 2023 Boards - Solutions - Solutions to CBSE Sample Paper - Biology Class 12

Last updated at August 12, 2026 by

(a) Draw a pyramid of numbers where a large number of insects are feeding on the leaves of a tree. What is the shape of this pyramid?

(b) Will the pyramid of energy be also of the same shape in this situation? Give reason for your response.

 

Answer:

[Biology Class 12] (a) Draw a pyramid of numbers where a large number - Biology - CBSE Class 12 Sample Paper for 2023 Boards - Solutions

  1. Inverted pyramid because a large number of insects feed on one tree.
  2. No, the Pyramid of energy is always upright, and can never be inverted because when energy flows from one trophic level to the next trophic level some amount of energy is always lost as heat at each step.
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