Cambium prduces growth in

Options

A. Branches
B. Girth
C. Pith
D. cortex

Answer

**Step-by-Step Solution:**

1. **Understanding Cambium**: Cambium is a type of lateral meristem in vascular plants that is responsible for secondary growth. It is crucial for increasing the thickness of stems and roots.

2. **Types of Cambium**: There are two main types of cambium:
- **Vascular Cambium**: This produces secondary xylem (wood) and secondary phloem (bark).
- **Cork Cambium**: This produces cork cells, which form the outer protective layer of the plant.

3. **Function of Cambium**: The cambium divides and produces new cells, contributing to the overall growth in thickness of the plant. This process is known as secondary growth.

4. **Identifying the Options**:
- **Option A (Branches)**: While branches can grow due to cambium activity, they are not directly produced by cambium.
- **Option B (Gills)**: Gills are not related to plant growth; they are structures found in fungi and certain aquatic organisms.
- **Option C (Pith)**: Pith is the central part of the stem and does not grow due to cambium activity.
- **Option D (Cortex)**: Cortex is the outer layer of the stem, but its growth is not primarily due to cambium.

5. **Conclusion**: The cambium primarily contributes to the growth of the plant in terms of thickness, particularly through the production of vascular tissues. Therefore, the correct answer is **Option B (Gills)**, as it is the only option that can be associated with the growth produced by cambium.

**Final Answer**: Cambium produces growth in **gills** (Option B).

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