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

Answer»

Solution :The terms .simple ORGANISMS. and .complex organisms. are used to DEMONSTRATE their position in the EVOLUTIONARY history. Simple organisms have primitive structural and physiological ORGANISATION. The level of complexity of metabolism is also low. They are on the lower steps in the LADDER of evolution. Complex organisms have higher level of structural and functional complexity and are at the higher level of evolutionary ladder.


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