Gross primary productivity is-...

Gross primary productivity is-

Rate at which organic molecules are formed in an autotroph

Rate at which organic molecules are used up by autotroph

Storage of organic molecules in the body of an autotroph

Rate at which organic molecules are transferred to the next higher trophic level

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Assertion : The plant biomass which serves as the food of herbivores and decomposers is said to result from the gross primary productivity. Reason : Gross primary productivity is the rate of net production of organic meterial (biomass).

Which of the following statements are true ? 1. Gross primary productivity is always greater than Net Primary productivity . 2. Gross primary productivity plus the respiration losses give us Net Primary productivity . 3. The rate of respiration of plants affects the Net Primary productivity . 4. Net primary productivity + Gross primary productivity = Respiratory loss.

Select the correct combination of statements regarding the characteristics of productivity : I. The rate of biomass production is called productivity and is expressed in terms of kcal m^(-2) II. Gross primary productivity is rate of production of biomass during photosynthesis II. Gross primary productivity minus respiration loss is called net primary productivity IV. Primary productivity depends only on the plant species inhabiting a particular area. The correct statements are

What is Gross primary productivity (GPP)?

Which ecosystem has the highest gross primary productivity ?

Assertion: Net primary productivity is gross primary productivity minus respiration. Reason :Secondary productivity is produced by hetrotrophs.

In relation to Gross primary productivity and Net primary productivity of an ecosystem,which one of the following statements is correct?

CENGAGE BIOLOGY-ECOSYSTEM-ARCHIVES (CHOOSE THE CORRECT OPTION)

Gross primary productivity is-
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