The ………. shows adaptive radiation resulting from competition for food in a population.

Options

A. Sickle cell anaemia
B. Peppered moth of England
C. DDT resistant mosquitoes
D. Darwin finches

Answer

**Step-by-Step Solution:**

1. **Understanding Adaptive Radiation**:
- Adaptive radiation is a process where organisms diversify rapidly into a wide variety of forms to adapt to different environments, often as a result of competition for resources such as food.
- This concept was introduced by Charles Darwin, who observed that species from a common ancestor can evolve differently when they migrate to various habitats.

2. **Analyzing the Options**:
- **Sickle Cell Anemia**: This is a genetic disorder caused by a mutation affecting hemoglobin in red blood cells. It does not relate to adaptive radiation or competition for food.
- **Peppered Moth of England**: The change in color of the peppered moth during the Industrial Revolution was due to environmental changes (pollution) rather than competition for food.
- **DDT Resistant Mosquitoes**: This refers to mosquitoes that have developed resistance to the pesticide DDT. This adaptation is not linked to competition for food.
- **Darwin's Finches**: These birds, found in the Galapagos Islands, evolved from a common ancestor and adapted to different food sources available in their environment, demonstrating adaptive radiation due to competition for food.

3. **Identifying the Correct Answer**:
- Given the analysis, the correct answer to the question is "Darwin's finches," as they exemplify adaptive radiation resulting from competition for food in a population.

**Final Answer**: The **Darwin's finches** shows adaptive radiation resulting from competition for food in a population.

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