Question

which organism are called primitive and how are they different from the so-called advanced organism​

Answer 1

Answer:

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An organism which has a simple body structure and ancient body design or features that have not changed much over a period of time is called primitive. Advanced organisms were once primitive organisms and have been advanced with evolution over time.

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Answer 2

• Advanced organisms were once primitive organisms and have been advanced with evolution over time.

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• Primitive organisms are those which have ancient body designs and have not changed much. ... On the other land, the organisms that have acquired more complex structure and body design relatively recently are called advanced organisms. They have complex body design and are called higher organisms