Which organisms are called primitive and how are they different from the so-called advanced organisms?

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Which organisms are called primitive and how are they different from the so-called advanced organisms?

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Salim Ahmed Kawsar · Answer 1 · Feb 05, 2023 15:29:48

An organism which is simple is called primitive. On the other hand, an organism with high level of division of labour, by formation of organs and organ system is called advanced.

Salim Ahmed Kawsar · Answer 2 · Feb 05, 2023 15:29:48

Older organisms are called primitive and they have simple structure. Body structure of advanced organism is complex.

Salim Ahmed Kawsar · Answer 3 · Feb 05, 2023 15:29:48

A primitive organism is the one which has a simple body structure and ancient body design or features that have not changed much over a period of time. As per the body design, the primitve organisms which hav simple structures are different from those so-called advanced organisms which have complex body structure and organization.

Which organisms are called primitive and how are they different from the so-called advanced organisms?

3 Answers