Choose incorrect option w.r.t. amount of living material present in different trophic levels at a gi

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12.Ecosystem

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Choose incorrect option w.r.t. amount of living material present in different trophic levels at a given time

A

Can be measured as number

B

Is equivalent to standing crop

C

Is always represented as dry weight only

D

Expressed both as biomass and number

Solution

Trophic levels -Biomass, number, energy and standing crop.

Standard 12

Biology

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