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Question
What is meant by living? Give any four defining features of life forms.
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Solution
The ability of an object can self-replicate and self-regulate is known as Living.
The 4 defining characteristics are:
- Growth: There are two types. Extrinsic and intrinsic growth. Which is deposited on the outer surface and one is inside the cell
- Reproduction: Biological process in which an organism gives rise to individuals similar to themselves. The process is of two types. Asexual and sexual reproduction.
- Metabolism: It is the total of all chemical & biological reactions occurring simultaneously inside the cells. It is two types catabolism and anabolism. One involves the breakdown of molecules and one is the building up of biomolecules
- Consciousness: Ability of the body to sense & respond to external stimuli.
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