Question

Assertion: The flow of energy through different steps in the food chain is unidirectional. Reason:-The energy captured by autotrophs does not revert back to the solar input and it passes to the herbivores

Answer 1

Both assertion and reason are correct and reason is correct for the assertion.

Answer 2

Assertion: The flow of energy through different steps in the food chain is unidirectional. Reason:-The energy captured by autotrophs does not revert back to the solar input and it passes to the herbivores.

(a) Both, A and R, are true and R is the correct explanation of A. (b) Both, A and R, are true but R is not the correct explanation of A. (c) If A is true but R is false. (d) If A is false but R is true.

Answer:

The correct option is (a) Both, A and R, are true and R is the correct explanation of A.

Explaination:

Assertion:

• Energy flow through the food chain is unidirectional, meaning it moves in one direction from the sun to the producers and through the different trophic levels of the food chain until it reaches the decomposers.
• The sun is the primary source of energy for almost all life on Earth. Producers, or autotrophs, such as plants and algae, capture this energy through the process of photosynthesis and convert it into organic compounds that they use for growth and survival.

Reason:

• The energy captured by autotrophs, such as plants and algae, through the process of photosynthesis, does not revert back to the solar input. Instead, it is passed on to herbivores when they eat the plants.
• This energy is then transferred to carnivores when they eat the herbivores. The energy captured by autotrophs is used for their own growth and survival, and only a fraction of it is passed on to the next trophic level.

To learn more about decomposers, visit

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