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

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

Solution & Step-by-step Explanation

Consciousness or irritability—the ability to perceive and respond to environmental stimuli—is a defining and exclusive property of all living organisms. While non-living things (like crystals) can increase in mass by external accumulation, only living things grow from within.

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Which one of the following aspects is an exclusive characteristic of living things?
A
Perception of events happening in the environment and their memory.
B
Increase in mass by accumulation of material both on surface as well as internally.
C
Isolated metabolic reactions occur in vitro.
D
Increase in mass from inside only.

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