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02/01/2021 4:06 pm
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Which organisms are called primitive and how are they different from the so-called advanced organisms?
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02/01/2021 4:07 pm
Primitive organisms are those which retain their ancient body designs and basic characteristic and have not changed much during the course of evolution. They differ from so called advanced organisms as the advanced organisms have acquired new body designs and have developed specialised characteristics in accordance with the demand of the changing environment through the process of organic evolution.