Competition results in

Options

A. Extinction
B. Mutation
C. Lager number of niches
D. Symbiosis

Answer

### Step-by-Step Solution:

1. **Understanding Competition**:
- Competition in ecology refers to the struggle between organisms, either of the same species (intraspecific competition) or different species (interspecific competition), for limited resources such as food, space, and mates.

2. **Types of Competition**:
- **Intraspecific Competition**: This occurs between individuals of the same species. For example, two lions competing for food or mates.
- **Interspecific Competition**: This occurs between individuals of different species. For example, a lion and a tiger competing for the same prey.

3. **Consequences of Competition**:
- When two species compete for the same resources, it can lead to one species outcompeting the other, which may result in the exclusion of one species from that niche. This is known as the **Competitive Exclusion Principle** proposed by Gause.

4. **Competitive Exclusion Principle**:
- According to this principle, two closely related species competing for the same resources cannot coexist indefinitely. One will eventually outcompete the other, leading to a change in their roles or niches within the ecosystem.

5. **Niche Differentiation**:
- To reduce conflict, species may adapt by changing their niches. This means they might exploit different resources or use the same resource in different ways, thus increasing the number of niches available in the ecosystem.

6. **Conclusion**:
- Therefore, competition results in an increase in the number of niches in an ecosystem as species adapt to avoid direct competition for the same resources.

### Final Answer:
- The correct answer to the question "Competition results in" is **large number of niches**.

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