Given below is data showing number of individuals and dry weight of different trophic levels in a grassland ecosystem. Construct: Pyramid of number Trophic Level Number of individuals Dry weight (Kg m -2 ) Primary Producer 5,84,2000 809 Primary consumer 7,08,000 37 Secondary consumer 3.54,000 11 Tertiary consumer 3 1.5

Pyramid of number in an ecosystem represents the number of living organisms present in each trophic level. For the given data, the pyramid of numbers has been constructed below:

Given below is data showing number of individuals and dry weight of different trophic levels in a grassland ecosystem. Construct: Pyramid of Biomass Trophic Level Number of individuals Dry weight (Kg m -2 ) Primary Producer 5,84,2000 809 Primary consumer 7,08,000 37 Secondary consumer 3.54,000 11 Tertiary consumer 3 1.5

Pyramid of biomass is a graphical representation of the biomass of the living matter in each trophic level.

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The pyramid of energy in an open ocean is

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Important Questions on Ecosystem

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Biology>Ecology>Ecosystem>Ecological Pyramids

Given below is data showing number of individuals and dry weight of different trophic levels in a grassland ecosystem. Construct:

Pyramid of number

Trophic Level	Number of individuals	Dry weight (Kg m^-2)
Primary Producer	5,84,2000	809
Primary consumer	7,08,000	37
Secondary consumer	3.54,000	11
Tertiary consumer	3	1.5

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Biology>Ecology>Ecosystem>Ecological Pyramids

If the age pyramid is triangle then choose correct answer from the given options.

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Biology>Ecology>Ecosystem>Ecological Pyramids

Given below is data showing number of individuals and dry weight of different trophic levels in a grassland ecosystem. Construct:

Pyramid of Biomass

Trophic Level	Number of individuals	Dry weight (Kg m^-2)
Primary Producer	5,84,2000	809
Primary consumer	7,08,000	37
Secondary consumer	3.54,000	11
Tertiary consumer	3	1.5

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Biology>Ecology>Ecosystem>Ecological Pyramids

Pyramid of energy is always upright. Why?

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Biology>Ecology>Ecosystem>Ecological Pyramids

Which of the following statements is not correct?

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Biology>Ecology>Ecosystem>Ecological Pyramids

The pyramid of biomass in sea is generally:

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Biology>Ecology>Ecosystem>Ecological Pyramids

Which one of the following has the largest population in a food chain?

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Biology>Ecology>Ecosystem>Ecological Pyramids

Which of the following is not an example of a bio-mass energy source?

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Biology>Ecology>Ecosystem>Ecological Pyramids

Study the following graph of the metabolic rate of various terrestrial mammals as a function of their body mass and choose the correct option below.

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EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

Choose the correct statements related to ecological pyramids?
(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.

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Biology>Ecology>Ecosystem>Ecological Pyramids

Identify the type of ecological pyramid given below.

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