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Energy Flow in an Ecosystem

Assertion : L...

Question

Assertion : Living organisms are regarded as closed systems.
Reason : Energy of living organisms cannot be lost or gained from external environment.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

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B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

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C

If the assertion is true but the reason is false

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D

If both the assertion and reason are false

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E

If the assertion is false but reason is true

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Solution

The correct option is D If both the assertion and reason are false
Living organisms are regarded as open system as they can gain or loose energy from external environment. All living organisms restore their energy either directly from sunlight or indirectly from food. Hence the correct option is D.

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