ECOLOGY
ENERGY FLOW AND THE FOOD CHAIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sun, decomposer, producer, primary consumer, secondary consumer
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Sun, Primary consumer, producer, decomposer, secondary consumer
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sun, producer, primary consumer, secondary consumer, decomposer
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sun, primary consumer, secondary consumer, producer, decomposer
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Detailed explanation-1: -The flow of energy is always unidirectional. The energy passes from primary producers to primary consumers. From the primary consumers, the energy is passed to secondary consumers and then to tertiary consumers.
Detailed explanation-2: -The sun is not a producer in the food chain. Nor is it a consumer nor a decomposer. All food chains though do begin with the sun.
Detailed explanation-3: -Thus, the correct answer is ‘Producers >Herbivores > Carnivores > Decomposers.
Detailed explanation-4: -A food chain shows how energy flows from one organism to another. In general, energy flows from the Sun to producers and then to consumers. The path is linear as the energy present in one step is transferred to the next.
Detailed explanation-5: -Primary producers use energy from the sun to produce their own food in the form of glucose, and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers, and so on, so that energy flows from one trophic level, or level of the food chain, to the next.