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Assertion: Living organisms are regarded as closed systems.
Reason: Energy of living organisms can not be lost or gained from external environment.
[ AIIMS 2002]
Both assertion and reason are true and the reason is a correct explanation of the assertion.
Both assertion and reason are true but reason is not correct explanation of the assertion.
Assertion is true but reason is false.
Both assertion and reason are false.
Assertion is false but the reason is true.