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The upright pyramid of number is absent ...

The upright pyramid of number is absent in 

A

Pond

B

Forest

C

Lake

D

Grassland

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Pyramid of numbers is

Define pyramid of numbers.

Assertion: In forest ecosystem the pyramid of number is somewhat different in shape. Reason: The pyramid of number in forest ecosystem looks spindle shaped.

Spindle shaped pyramid of number is noticed in forest ecosystem. Give Reasons.

Assertion: The pyramid of number in a parasite ecosystem is always upright. Reason: In the pyramid of number the pond ecosystem has the decomposers in the T_1 level.

Assertion (A): In forest ecosystem, the pyramid of number is spindle shaped. Reason (R): Tropical (T1) of the pyramid occupies large trees which are maximum in number

Which of the following representations shows the pyramid of numbers in a forest ecosystem?

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