Sepals, petals, anthers, flower.

Explanation

To answer the question regarding sepals, petals, anthers, and flower, we can break it down step by step:

### Step-by-Step Solution:

1. **Understanding Flower Structure**: A flower is a reproductive organ of a plant. It consists of several parts that play different roles in reproduction.

2. **Identifying Flower Parts**:
- **Sepals**: These are the small leaf-like structures that protect the flower in its bud stage. They are usually green and can be found at the base of the flower.
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