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

What are we referring to when we say ‘simple organisms’ or ‘comp

1.	What are we referring to when we say ‘simple organisms’ or ‘complex organisms’?
Answer» These are the terms to classify organisms according to their evolutionary history. Simple organisms have simple structural and functional organisation and are considered primitive, whereas complex organisms have complex structural and functional organisation and are said to have arise from simple organisms.

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

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