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How much of the net primary productivity...

How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores?

A

0.01

B

0.1

C

0.4

D

0.9

Text Solution

Verified by Experts

The correct Answer is:
B
Energy flow in the ecosystem follows the ten percent law (put forth by Lindermann in 1942 ).
From the level of primary producers onwards, only 10 % of energy is stored at the higher trophic level and 90 % is lost (as heat or in respiration etc. ). This energy transfer forms the basis of life.
`underset(20J)"Producers" to underset(2 J)"Herbivores" to underset(0.2J)"Carnivores"`
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