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NEETBotanyEcosystem

What is the flow of energy in an ecosystem, starting from the sun?

Options

  1. AFrom sun to consumers to producers
  2. BFrom consumers to producers to sun
  3. CFrom producers to consumers to sun
  4. DFrom sun to producers to consumers

Correct answer

D. From sun to producers to consumers

Step-by-step solution

The flow of energy in an ecosystem starts from the sun, then goes to producers and finally to consumers. Except for the deep sea hydro-thermal ecosystem, sun is the only source of energy for all ecosystems on Earth. Of the incident solar radiation less than 50 per cent of it is photosynthetically active radiation (PAR). We know that plants and photosynthetic bacteria (autotrophs), fix Sun’s radiant energy to make food from simple inorganic materials. Plants capture only 2-10 per cent of the PAR and this small amoun

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