An evolutionary pattern characterised by a rapid increase in number and kinds of closely related species is called

Options

A. Divergent evolution
B. Convergent evloution
C. Adaptive radiation
D. Parallel evolution

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for an evolutionary pattern characterized by a rapid increase in the number and kinds of closely related species.

2. **Analyzing the Options**:
- **Option A: Divergent Evolution**: This type of evolution involves homologous organs, which are similar in structure but serve different functions. It does not specifically denote a rapid increase in closely related species, so this option is not correct.

- **Option B: Convergent Evolution**: This refers to analogous organs that are similar in function but differ in structure. Like divergent evolution, it does not focus on closely related species, making it an incorrect choice.

- **Option C: Adaptive Radiation**: This is the correct answer. Adaptive radiation occurs when a single ancestral species rapidly diversifies into a wide variety of forms to adapt to different environments. A well-known example is Darwin's finches, which evolved into multiple species with different adaptations based on their environment. This pattern is characterized by a rapid increase in the number and kinds of closely related species.

- **Option D: Parallel Evolution**: This involves the independent evolution of similar traits from a common ancestor. It does not focus on the rapid increase of closely related species, so this option is also incorrect.

3. **Conclusion**: Based on the analysis, the evolutionary pattern characterized by a rapid increase in the number and kinds of closely related species is called **Adaptive Radiation**.

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