Question

Differentiate between primitive and advanced organisms.

Answer 1

1. Primitive organisms are organisms that have primitive cellular structures and biological functions.
2. Advance organisms are organisms that have undergone various changes with time.

The difference between advanced and primitive organisms is shown in the table given below -

S.No.	Primitive Organism	Advanced Organism
1.	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.
2.	They have a simple body structure as compared to advance organism.	They have a complex body structure.
3.	Example - Trichoplax adhaerans	Example - Amoeba