Question

Assertion The pyramid of energy is always upright
Reason Number of autotrophs in the pyramid of energy are maximum.
A. Both Assertion and Reason are true and Reason is the cprrect explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true, but Reason is false
D. Assertion is false, but Reason is true

Answer 1

Correct Answer - C
Pyramid of energy is a graphical representation of amount of energy trapped per unit time and area in different levels of a food chain .
Pyramid of energy is always upright because the flow of energy is unidirectional. All of the energy stored by the autotrophs in the form of food is available to the herbivores as food. Herbivores can store only `10%` of this energy in their biomass and remainning `90%` is used by them in metabolic activities. In the same way, only `10%` of energy of lower trophic level can be captured by the organisms of next higher trophic level. Thus, this pyramid depends upon energy and not the number of individuals, in a trophic level.