The storage of energy at consumer level is known as

Gross primary production

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Secondary productivity

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Net primary productivity

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Net productivity

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Solution

The correct option is B Secondary productivity
Secondary productivity is the rate of energy storage at consumer levels herbivores, carnivores and decomposers. Consumers utilise already produced food materials in their respiration and also converts the food matter to different tissues by an overall process.
Gross primary productivity refers to the total rate of photosynthesis including the organic matter used up in respiration during the measurement period.
Net primary productivity refers to the rate of storage of organic matter in plant tissues in excess of the respiratory utilisation by plants during the measurement period.
Net productivity refers to the rate of storage of organic matter not used by the heterotrophs or consumers, i.e., equivalent to net primary production minus consumption by the heterotrophs during the unit period, as a season or year etc.

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Q. The amount of energy available to the primary consumer in a food chain, is ____ of the net primary production.

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Match List–I with List–II and select the correct answer using the codes given below the lists

$\begin{matrix} L i s t I & L i s t I I A . A . T h e a m o u n t o f e n e r g y a c c u m u l a t i o n i n & 1. G r o s s p r i m a r y p r o d u c t i v i t y . g r e e n p l a n t s t h r o u g h t h e p r o c e s s o f p h o t o s y n t h e s i s B . T h e t o t a l o r g a n i c m a t t e r s y n t h e s i z e d b y & 2. P r i m a r y p r o d u c t i v i t y t h e p r o d u c e r s i n t h e p r o c e s s o f p h o t o s y n t h e s i s p e r u n i t t i m e a n d a r e a . C . R a t e o f s t o r a g e o f o r g a n i c m a t t e r & 3. S e c o n d a r y p r o d u c t i v i t y i n p l a n t t i s s u e s i n e x c e s s o f t h e r e s p i r a t o r y u t i l i z a t i o n d u r i n g t h e m e a s u r e m e n t p e r i o d D . R a t e o f e n e r g y s t o r a g e a t c o n s u m e r l e v e l & 4. N e t p r i m a r y p r o d u c t i v i t y \end{matrix}$

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