Which of the following is incorrectly matched ?

Options

A. Alpha diversity - Number of species in a given habitat
B. Genetic diversity - Variation of genes within species
C. Beta diversity - Diversity of habitat in the whole region
D. Species diversity - The product of species richness and evenness

Answer

To solve the question of which of the following is incorrectly matched, we will analyze each option one by one.

### Step-by-Step Solution:

1. **Understanding Alpha Diversity**:
- **Definition**: Alpha diversity refers to the number of species in a given habitat.
- **Analysis**: This definition is accurate as alpha diversity indeed measures the richness of species in a specific area.
- **Conclusion**: This option is correctly matched.

2. **Understanding Genetic Diversity**:
- **Definition**: Genetic diversity refers to the variation of genes within a species.
- **Analysis**: This definition is also accurate as genetic diversity encompasses the genetic variation among individuals within a species.
- **Conclusion**: This option is correctly matched.

3. **Understanding Beta Diversity**:
- **Definition**: Beta diversity is described as the diversity of habitat in a whole region.
- **Analysis**: This definition is incorrect. Beta diversity actually measures the variation in species composition between different communities or habitats, not the diversity of habitat itself.
- **Conclusion**: This option is incorrectly matched.

4. **Understanding Species Diversity**:
- **Definition**: Species diversity is the product of species richness and evenness.
- **Analysis**: This definition is accurate as species diversity takes into account both the number of species (richness) and their relative abundance (evenness).
- **Conclusion**: This option is correctly matched.

### Final Conclusion:
The incorrectly matched option is **Beta Diversity**, which is incorrectly defined as the diversity of habitat in a whole region.