A genus with a single species is

Options

A. Polytypic
B. Monotypic
C. Polygamic
D. Monocarpic

Answer

To solve the question "A genus with a single species is:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- First, we need to understand the terminology used in biological classification. A genus is a rank in the biological classification system that groups together species that are closely related.

2. **Identify the Options**:
- The options provided are:
- Polytypic
- Monotypic
- Polygynic
- Monocopic

3. **Define Each Option**:
- **Polytypic**: This refers to a genus that contains multiple species.
- **Monotypic**: This refers to a genus that contains only one species.
- **Polygynic**: This term generally refers to a mating system where one male mates with multiple females, not related to the number of species in a genus.
- **Monocopic**: This term is not commonly used in relation to genus classification and typically refers to floral structures.

4. **Select the Correct Answer**:
- Based on the definitions, the term that describes a genus with a single species is **Monotypic**.

5. **Conclusion**:
- Therefore, the correct answer to the question is **Monotypic**.

### Final Answer:
A genus with a single species is known as **Monotypic**.

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