Productivity of an Ecosystem

IMPORTANT

Productivity of an Ecosystem: Overview

This topic covers concepts, such as, Productivity in Ecosystem, Primary Productivity, Gross Primary Productivity, Net Primary Productivity, Secondary Productivity & Ecological Efficiency etc.

Important Questions on Productivity of an Ecosystem

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The amount of energy left in the producers after utilization of some energy for respiration is known as:

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Which one of the following ecosystem has the highest annual net primary productivity?

MEDIUM
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If 20 joules of energy is available at the producer level as net primary productivity, then amount of energy available in secondary carnivore in joules.

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What is productivity of an ecosystem?

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The ability to produce the organic compound in unit time is

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The rate of storage of organic matter not used by consumers is termed as

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Which of the following is estimated in either chlorophyll content or photosynthetic number?

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Select the ecosystem that has the lowest productivity.

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Choose the bacteria that can oxidize hydrogen sulphide to sulphur.

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Which among the following does not contribute to the atmospheric CO2 pool?

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The rate of organic matter created by photosynthesis minus the rate of respiration and other losses by a plant is called

MEDIUM
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Which of the following is expected to have the highest value (gm/m2/yr) in a grassland ecosystem?

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The productivity of the oceans is approximately _______ the annual net primary productivity of the whole biosphere.

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In which of the following ecosystem, productivity is about 55 million tonnes?

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Primary productivity does not depend upon 

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The rate of synthesis of organic matter by consumers is:

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The energy available to the organism at the third trophic level is called

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The total dry weight accessible to heterotrophs in an ecosystem will form the:

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Select the correct relationship from the following.

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The available biomass for the consumption of herbivores and decomposers in an ecosystem is