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Characteristics of Living Organisms · NCERT Biology

The most technically complicated feature of all living organisms is:

  1. The digestive system of the organism
  2. The capacity to sense the surroundings and respond to stimuli
  3. The presence of a complex circulatory network
  4. The ability to move from one place to another place
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Correct answer: The capacity to sense the surroundings and respond to stimuli

Consciousness, the ability to sense and respond to stimuli (physical, chemical, or biological), is found in all organisms from prokaryotes to eukaryotes. It is considered the most sophisticated and defining feature of life.

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