Q. Consider the following statements regarding the Pyramid of Biomass:
1.The pyramid of biomass in terrestrial ecosystems is generally upright, with maximum biomass at the producer level.
2.In most of the aquatic ecosystems, the pyramid of biomass is inverted.
3.The pyramid of biomass is measured by counting the number of individuals at each trophic level.
How many of the statements above statements is/are correct?
Answer: B
Notes:
Explanation:
- In terrestrial ecosystems, producers like trees and grasses have maximum biomass, making the pyramid upright.
- In aquatic ecosystems, fast-reproducing phytoplankton have less standing biomass than primary consumers (like zooplankton), leading to an inverted pyramid.
- Pyramid of biomass is based on dry weight (biomass), not the number of individuals — that’s the pyramid of numbers.
Source: Environment (NCERT)
