Question

which organisms are called primitive and how are they different from the so called advanced organism?

Answer 1

Answer:

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

Explanation:

Answer 2

Answer:

hey mate here is your Answer:- The organisms which have ancient body designs that have not changed much are called primitive organisms or lower organisms. These are simple life forms. On the other hand, the organisms that have acquired their particular body designs relatively recently, they are called advanced organisms or higher organisms.

Explanation:

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