Question

Which organisms are called primitive? How are they different from the advanced organisms?

Give one characteristic difference between primitive and advanced organisms.

Answer 1

Primitive organisms are those organism who have ancient body design that have not changed over the time period. They are different from advanced organism in their body design which is simpler in comparison to advanced organisms. Primitive organisms are generally single celled and all their body functions are performed in single cell whereas advanced organisms are multicellular have specialized organs for performing different functions.