Hookworm is known so as it possesses

Options

A. Buccal capsule
B. Lancets and cutting plates
C. Curvature in anterior regoin
D. Curvature in posterior region in both the sexes

Answer

**Step-by-Step Text Solution:**

1. **Understanding Hookworm**: Hookworms are parasitic roundworms that primarily inhabit the intestines of their hosts and feed on blood. They are known to cause a condition called anemia due to their blood-feeding behavior.

2. **Identifying the Characteristics**: The question asks why hookworms are referred to as "hookworms." To answer this, we need to consider the anatomical features of these worms.

3. **Examining the Options**:
- **Buccal capsule**: This is a structure that helps in feeding but does not explain the name "hookworm."
- **Lancets and cutting plates**: These are also feeding structures but do not relate to the name.
- **Curvature in anterior region**: This refers to the bend in the head of the hookworm, which is crucial for its identification.
- **Curvature in posterior region**: This is not a characteristic of hookworms.

4. **Conclusion**: The defining feature that gives hookworms their name is the curvature in the anterior region of their body. This curvature creates a hook-like appearance, which is why they are called "hookworms."

5. **Final Answer**: Hookworm is known as such because it possesses a curvature in the anterior region.

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