Explain: Why using visible movement as the defining characteristi… - Vidyadip

Question

Explain: Why using visible movement as the defining characteristic of life is not enough.

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Answer

Running, chewing, shouting, etc. are common examples of voluntary movements.
Even animals / human when asleep, show breathing which is one kind of involuntary movement.
The growth of plant is considered as a movement.
Involuntary movements in animals and growth related movements in plants may not be visible.
But still they indicate life.
Molecular movements are also invisible, which still keep the bodies alive.
So, using visible movement as the defining characteristic of life is not enough.

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