Question

Differentiate Parazoa and Eumetazoa.

Answer 1

1. Parazoa are the organisms whose body is formed of loosely aggregated cells with poorly differentiated tissues, organs and organ system.
2. Eumetazoa are the organisms whose body is arranged into tissues, organs and organ system.

S.No.	Parazoa	Eumetazoa
1	These are the animals whose tissue are not organized.	These are animals whose tissue are organized into true tissues and there is a development of organs.
2	They do not have more complexly organized tissue.	They have more complexly organized tissues than parazoa.
3	Examples- Sponges.	Examples- Flatworm, annelids, molluscs.