Angiosperms have dominated the land flora primarily by their

Options

A. nature of self pollination
B. property of producing large number of seeds
C. domestication by man
D. power of adaptability in diverse habitat.

Answer

To answer the question "Angiosperms have dominated the land flora primarily by their," we will analyze each option provided and determine which one is correct.

### Step-by-Step Solution:

1. **Understanding Angiosperms**:
- Angiosperms, also known as flowering plants, are characterized by their ability to produce flowers and seeds enclosed within a fruit. They are the most diverse group of land plants.

2. **Evaluating the Options**:
- **Option A: Nature of Self-Pollination**:
- While some angiosperms can self-pollinate, many also rely on cross-pollination, often facilitated by insects. Therefore, this is not the primary reason for their dominance.

- **Option B: Property of Producing Large Number of Seeds**:
- Although angiosperms can produce a significant number of seeds, gymnosperms also produce seeds (albeit naked seeds). Thus, this characteristic alone does not explain their dominance in land flora.

- **Option C: Domestication by Men**:
- While some angiosperms have been domesticated for agriculture, this does not apply to all angiosperms. Many grow naturally in various habitats without human intervention, making this option incorrect.

- **Option D: Power of Adaptability in Diverse Habitat**:
- This option is correct. Angiosperms are highly adaptable and can thrive in a wide range of environments, from deserts to wetlands. Their ability to occupy diverse habitats contributes significantly to their dominance in land flora.

3. **Conclusion**:
- The correct answer is **Option D: Power of adaptability in diverse habitat**. This adaptability allows angiosperms to flourish in various ecological niches, making them the most successful group of plants on Earth.