Non-porous and soft wood is found in

Options

A. gymnosperms
B. dicots
C. monocots
D. ferns

Answer

**Step-by-Step Solution:**

1. **Understanding Wood Types**:
- There are two main types of wood: porous (hardwood) and non-porous (softwood).
- Porous wood has a high percentage of xylem vessels, while non-porous wood has a high percentage of tracheids.

2. **Characteristics of Porous Wood**:
- In porous wood, the xylem vessels make up about 90-95% of the wood structure.
- This results in a broad lumen (the hollow part of the vessel).

3. **Characteristics of Non-Porous Wood**:
- In non-porous wood, tracheids comprise about 90-95% of the wood structure.
- This leads to a narrow lumen.

4. **Composition of Hardwood vs. Softwood**:
- Hardwood (porous) contains a higher amount of xylem fibers.
- Softwood (non-porous) has fewer xylem fibers.

5. **Presence in Plant Groups**:
- Porous wood is primarily found in angiosperms (flowering plants).
- Non-porous wood is mainly found in gymnosperms (non-flowering plants).

6. **Conclusion**:
- Based on the characteristics and presence of non-porous and soft wood, the correct answer to the question is that non-porous and soft wood is found in gymnosperms.

**Final Answer**: Non-porous and soft wood is found in gymnosperms.

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