Which of the following statements is not correct?
Held on 30 Apr 2021 · Verified 9 Jul 2026.
Pyramid of biomass in sea is generally inverted.
Pyramid of biomass in sea is generally upright.
Pyramid of energy is always upright.
Pyramid of numbers in a grassland ecosystem is upright.
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Which of the following is the unit of productivity of an Ecosystem?
Given below are two statements: Statement I : The primary source of energy in an ecosystem is solar energy. Statement II : The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP). In the light of the above statements, choose the most appropriate answer from the options given below:
Given below are two statements: Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers. Statement II: Ecosystems are exempted from 2nd law of thermodynamics. In the light of the above statements, choose the most appropriate answer from the options given below:
Consider the pyramid of energy of an ecosystem given below:  If $T_4$ is equivalent to 1000 J , what is the value at $T_1$ ?
Which one of the following is not a limitation of ecological pyramids?
Work through every NEET UG Ecosystem PYQ, year by year.