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Question
Write the features that distinguish between the two.
Open and Closed circulatory system
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Solution
| Open circulatory system | Closed circulatory system |
| 1. Blood pumped by heart passes through large vessels into open spaces or body cavities called sinuses | 1. Blood pumped by the heart is always circulated through a closed network of blood vessels |
| 2. Less advantageous | 2. More advantageous |
| 3. Flow of fluid cannot be more precisely regulated | 3. Flow of fluid can be more precisely regulated |
| 4. It is present in arthropods molluscs, and hemichordates | 4. It is found in annelids and chordates |
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