NEET 2011 Biology question

Which one of the following aspects is an exclusive characteristic of living things ?

(1)Isolated metabolic reactions occur in vitro
(2)Increase in mass from inside only
(3)Perception of events happening in the environment and their memoryCorrect
(4)Increase in mass by accumulation of material both on surface as well as internally.

Answer: (3)

Solution

NCERT (The Living World) treats consciousness, i.e. the ability to sense the environment and respond to it (perception of events in the surroundings and memory of them), as the defining property of living organisms. Non-living objects cannot sense or remember environmental events, so (3) is the exclusive

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Question ID VK-090741