Two species having same overlapping geographical area but different characters is

Options

A. (a) allopatric
B. (b) sympatric
C. (c) biological species
D. (d) sibling species

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about two species that occupy the same geographical area but exhibit different characteristics. This implies that these species are not isolated from each other.

2. **Identifying the Type of Speciation**: Since the species are in the same geographical area, we are looking at a type of speciation known as **sympatric speciation**. In sympatric speciation, species evolve from a common ancestor while inhabiting the same geographic region.

3. **Characteristics of Sympatric Speciation**:
- Species in sympatric speciation can have different adaptations or characteristics despite living in the same area.
- This type of speciation often involves mechanisms like **polyploidy**, especially in plants, where the number of chromosomes increases, leading to the formation of new species.

4. **Evaluating the Options**:
- **Option A: Allopatric** - This is incorrect because allopatric speciation involves geographical barriers that separate species.
- **Option B: Sympatric** - This is the correct answer as it describes species that coexist in the same area but have different characteristics.
- **Option C: Biological species** - This option is incorrect as it does not specifically address the geographical overlap and differing characteristics.
- **Option D: Sibling species** - This is also incorrect as sibling species typically refer to species that are closely related and share the same parents.

5. **Conclusion**: The correct answer to the question is **sympatric speciation**, where two species have overlapping geographical areas but exhibit different characteristics.