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What Is Pyramid of Energy

Which one of ...

Question

Which one of the following statements for pyramid of energy is incorrect, whereas the remaining three are correct?

A

It shows energy content of different trophic levels.

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B

It is upright in shape

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C

Its base is broad

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D

It is inverted in shape

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Solution

The correct option is D
It is inverted in shape

The pyramid of energy can never be inverted. It is always upright because at each transfer about 80-90% of the energy available at the lower trophic level is used up to overcome its entropy and to perform metabolic activities. Only 10% of the energy is available to the next trophic level.

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Q. Which one of the following statements for the pyramid of energy is incorrect, whereas the remaining three are correct?

Q. Read the following statements regarding ecological pyramids and choose the correct answer.
(a) Relationship between organisms at different trophic levels is expressed in terms of number, biomass and energy.
(b) Any calculations of energy content, biomass or number has to include one group of organisms at that trophic level.
(c) In most ecosystems, all the pyramids of number, biomass and energy are upright.
(d) The pyramid of biomass in sea is generally inverted.
(e) Pyramid of energy is always inverted and can never be upright.

Q. An ecological pyramid shows the relationship of biomass, productivity or energy at different trophic levels. Consider the following statements about ecological pyramidsWhich of the above statement(s) is/are NOT correct?

Only 1 & 2
Only 2 & 3
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Q. Select the correct statements regarding the pyramids of ecosystem
(A) The pyramid of number of a tree ecosystem is inverted
(B) Pyramid of biomass in sea is inverted
(C) Pyramid of energy is mostly upright except in one special case
(D) Pyramids do not properly account the species belonging to two or more trophic levels

Q. Assertion :Pyramid of energy may be upright or inverted. Reason: Only 20% of energy goes to next trophic level.

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