Differentiate between
Open and Closed circulatory system
| Open Circulatory system | Closed circulatory system |
| 1. The blood flows in spaces called sinuses and cells and tissues are bathed in blood. | 1. The blood flows through a network of blood vessels |
| 2. Inefficient | 2. Efficient |
| 3. Found in Arthropoda and Mollusca | 3. Found in Annelida and mammals. |
Differentiate between :
Acoelomate and Pseudocoelomate
Differentiate between
Direct and Indirect development
Differentiate between
Polyp and Medusa
Differentiate between
Oviparity and viviparity
