Which of the following lacks stomata?

Options

A. Angiosperms
B. Bryophytes
C. Algae
D. Pteridophytes

Answer

To determine which of the following lacks stomata: Angiosperm, Bryophyte, Algae, or Pteridophyte, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Classification of Plants**:
- The plant kingdom is divided into two main categories: Cryptogams (non-flowering plants) and Phanerogams (flowering plants).
- Cryptogams include Algae, Bryophytes, and Pteridophytes, while Phanerogams include Gymnosperms and Angiosperms.

2. **Identify the Characteristics of Each Group**:
- **Algae**: These are simple, non-flowering plants found in the Thallophyta division. They are considered lower organisms and lack complex structures.
- **Bryophytes**: Commonly known as mosses, they are more complex than algae and possess stomata for gas exchange.
- **Pteridophytes**: These are ferns and are also more complex than algae. They have stomata for gas exchange.
- **Angiosperms**: These are flowering plants and are the most complex, possessing stomata for gas exchange.

3. **Focus on Stomata**:
- Stomata are small openings on the surface of leaves that allow for gas exchange (CO2 and O2) and are surrounded by guard cells.
- Stomata are found in more complex plants (Bryophytes, Pteridophytes, Angiosperms).

4. **Analyze Algae**:
- Algae, being simpler organisms, do not have stomata. Instead, they rely on diffusion for gas exchange since they are often submerged in water.

5. **Conclusion**:
- Based on the classification and characteristics discussed, the plant group that lacks stomata is **Algae**.

### Final Answer:
**Algae** lacks stomata.