The rate of formation of new organic matter by a rabbit in grassland is called

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Secondary productivity

Net primary productivity

Grass primary productivity

None of the above

answer is A.

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Detailed Solution

Concept: In an ecosystem, the directors are the bones which produce their own food. The directors are also the bones who produce food for the entire ecosystem. All the creatures in the given ecosystem are dependent on the directors for their food conditions. It's generally expressed in units of mass per volume per unit of time.The productivity of autotrophs, like shops, is called primary productivity. The productivity of heterotrophs, similar to creatures, is called secondary productivity.
Primary productivity is the conflation of new organic material from inorganic motes similar to water and carbon dioxide. It's brought about by the process of photosynthesis which uses sun to synthesise organic motes similar to sugars.Secondary productivity is the generation of biomass in heterotrophic organisms in a system. It's driven by the transfer of organic material between trophic situations. It also represents the volume of new towels created through the use of assimilated food. Secondary productivity is occasionally defined to include the consumption of primary directors by carnivorous consumers only.Organisms responsible for secondary productivity include creatures, protists, fungi, and numerous bacteria.
Secondary productivity can be calculated through a number of different styles including proliferation totality, junking totality, the Allen wind system, etc. The choice between these styles depends on the hypotheticals of each and the ecosystem under study. For illustration, whether cohorts should be distinguished, whether direct mortality can be assumed, and whether population growth is exponential.
Hence, option 1 is the correct answer

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