Assertion (A): Some aquatic ecosystems have inverted biomass pyramids. Reason (R): More energy is required by the organisms occupying higher trophic levels.
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Biomass pyramids in aquatic ecosystems are often inverted due to the high turnover rate of primary producers like phytoplankton.
Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true, but (R) is false
(A) is false, but (R) is true
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The Correct Option isB
Solution and Explanation
Inverted biomass pyramids are observed in aquatic ecosystems. While the rapid reproduction of primary producers (phytoplankton) allows them to support higher trophic levels despite lower biomass, this is not the correct explanation for inverted biomass pyramids. Energy generally diminishes at higher trophic levels; however, the rapid turnover of primary producers effectively sustains these levels.