What are we referring to when we say 'simple organisms' or 'complex organisms'?What are we referring to when we say 'simple organisms' or 'complex organisms'?

Question

What are we referring to when we say 'simple organisms' or 'complex organisms'?What are we referring to when we say 'simple organisms' or 'complex organisms'?,

MARKS App · Accepted Answer

The organisms that have simple structural and functional organisation and are considered primitive are simple organisms. Whereas organisms that have higher and complex levels of structural and functional organisation are complex organisms. These are more advanced and said to have arisen from simple organisms.

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