Question

What are we referring to when we say “simpler organisms” or “complex organisms”?​

Answer 1

Answer:

When we say simple or complex organisms we are talking in terms of evolutionary history of an Organism. A 'simple organism' is considered to be primitive and has simple thallus organisation; The level of complexity of metabolism is also low

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Answer 2

What are we referring to when we say “simpler organisms” or “complex organisms”? Answer: By “simpler organisms”, we mean those organisms which are primitive with simple organization and simple metabolic pathways, structural and functional.

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