Which is a character of gymnospermous wood

Options

A. Porous
B. Ring porous
C. Diffused porous
D. Non-porous.

Answer

### Step-by-Step Solution:

1. **Understanding Gymnosperms**: Gymnosperms are non-flowering plants that produce seeds that are not enclosed within an ovary. They include conifers like pines and firs.

2. **Wood Composition**: The wood of gymnosperms is primarily composed of tracheids, which are long, narrow cells that help in the conduction of water and provide structural support. Unlike angiosperms (flowering plants), gymnosperms have a lesser amount of xylem fibers.

3. **Absence of Vessels**: One of the key characteristics of gymnosperm wood is that it lacks xylem vessels. This absence is significant because xylem vessels are responsible for the rapid conduction of water in angiosperms.

4. **Porosity of Wood**: In terms of porosity, gymnosperm wood is classified as non-porous. This means that it does not have the large pores (vessels) that are found in angiosperm wood.

5. **Comparison with Angiosperms**: Angiosperms have a more complex wood structure with both tracheids and vessels, allowing for more efficient water transport. In contrast, gymnosperms have a higher percentage of tracheids and a lower percentage of vessels, which contributes to their classification as non-porous wood.

6. **Conclusion**: The correct answer to the question regarding the character of gymnospermous wood is that it is non-porous.

### Final Answer:
The character of gymnospermous wood is **non-porous**.

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