Give reasons for the following statements.
Birds have streamlined bodies.

Explanation

### Step-by-Step Solution:

1. **Definition of Streamlined Bodies**:
- A streamlined body is one that is narrow at the front and broader in the middle. This shape helps in reducing resistance when moving through air or water.

2. **Importance of Streamlined Shape for Birds**:
- Birds have a streamlined body to help them move efficiently through the air. The narrow front allows them to cut through air currents easily.

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