Question

What is the difference between primitive and advanced organisms?

Answer 1

1. Primitive organisms have a basic body structure and ancient body design or traits that have not altered significantly throughout time.
2. Advanced organisms began as primitive organisms and have progressed via evolution over time.

Primitive organism	Advanced organism
1. It has a simple body design.	1. It has a complex body design.
2. They are either lower or older organisms.	2. They are younger organisms.
3. Simple in structure.	3. Complex in structure.
4. Regarded at the top of the evolutionary ladder.	4. Evaluated at successive evolutionary scale ladders
5. Example: Trichoplax adhaerans	5. Example: Ameoba