How does open circulatory system differ from closed circulatory system? Give example for each.

Explanation

### Step-by-Step Solution:

1. **Definition of Open Circulatory System**:
- In an open circulatory system, the blood is not confined exclusively to blood vessels. Instead, it flows freely through cavities in the body, bathing the organs directly in a fluid called hemolymph.

2. **Characteristics of Open Circulatory System**:
- Blood (hemolymph) is pumped by the heart into open spaces (sinuses) within the body.
- There are no specialized blood vessels; instead, blood flows freely and directly around the organs.
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