Differentiate between
Polyp and Medusa
| Polyp | Medusa |
| Sessile and cylindrical | Motile, free-living and umbrella shaped |
| e.g Hydra | e.g Aurelia |
Differentiate between
Direct and Indirect development
Differentiate between
Open and Closed circulatory system
Differentiate between :
Acoelomate and Pseudocoelomate
Differentiate between
Oviparity and viviparity
