Q. 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
Explanation
[Solution from source] Consciousness, the ability to sense the environment and remember it, is the defining property found only in living things. Increase in mass by surface accumulation also occurs in non-living things such as crystals and mountains, and isolated metabolic reactions in vitro are not living. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.