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Why are the pyramids always upright?
Important Questions on Ecosystem





HARD

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Give a reason for each of the following:
The shape of the pyramid of biomass in an aquatic ecosystem is inverted.

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HARD
Write the suitable names of A, B, C, D, E and F in the given picture.

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(i) The trophic relationship is expressed in terms of numbers, biomass or energy arranged one on the top of its lower trophic level, resulting in a pyramid shape.
(ii) The base of each pyramid represents producers, while the apex represents the top order consumers.
(iii) The pyramid of biomass in sea is generally upright.
(iv) In the case of parasite food chain, the pyramid of number is inverted.
(v) Some species belonging to two or more trophic levels is not limitation of ecological pyramid.

HARD
Which of the following Pyramids in Aquatic ecosystem is not upright?

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Secondary consumer : 120 g
Primary consumer : 60 g
Primary producer : 10 g

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