Which one of the following aspects is an exclusive characteristic of living things?
Isolated metabolic reactions occur in vitro
Increase in mass from inside only
Perception of events happening in the environment and their memory
Increase in mass by accumulation of material both on surface as well as internally
As we learnt in
Response to stimuli -
Living organism respond to their surrounding or environmental stimuli physically, chemically or biologically.
- wherein
Eg, Photoperiodism in plants, Turtle retract their head in the shells when frightened.
and,
Consciousness -
Living organism are aware of their surrounding. Human being are only organism who has self consciousness.
- wherein
It is the defining property of living organism.
Perception including response to stimuli and consciousness are the most obvious characteristics of living beings.
Option 1)
Isolated metabolic reactions occur in vitro
This option is incorrect.
Option 2)
Increase in mass from inside only
This option is incorrect.
Option 3)
Perception of events happening in the environment and their memory
This option is correct.
Option 4)
Increase in mass by accumulation of material both on surface as well as internally
This option is incorrect.
Answer:- option 4
Increase in mass by accumulation of material both on surface as well as internally