Which one of the following phenomena supports Darwin's concept of natural selction in organic evolution?

Options

A. Devlopment of transgenic animals
B. Production of Dolly , the sheep by cloning
C. Prevalence of pestcide-resistant insects
D. Development of organs from 'stem cells ' for organ transplantation

Answer

To solve the question "Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution?", we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Natural Selection**:
- Natural selection is a process where organisms better adapted to their environment tend to survive and produce more offspring. This concept is central to Darwin's theory of evolution.

2. **Analyzing the Options**:
- **Option A: Development of transgenic animals**:
- Transgenic animals are created through genetic engineering in laboratories. This process is artificial and does not reflect natural selection.
- **Option B: Production of Dolly the sheep by cloning**:
- Dolly was the first mammal cloned from an adult somatic cell. Cloning is a human-driven process and does not illustrate natural selection.
- **Option C: Prevalence of pesticide-resistant insects**:
- This phenomenon occurs when insects develop resistance to pesticides over generations. Those that survive the pesticide application reproduce, leading to a population that is resistant. This is a clear example of natural selection in action.
- **Option D: Development of organs from stem cells for organ transplantation**:
- This process involves human intervention and laboratory techniques to create organs, which does not represent natural selection.

3. **Selecting the Correct Answer**:
- Based on the analysis, **Option C: Prevalence of pesticide-resistant insects** is the only phenomenon that supports Darwin's concept of natural selection. It demonstrates how organisms adapt to their environment through natural processes.

### Final Answer:
**Option C: Prevalence of pesticide-resistant insects** supports Darwin's concept of natural selection in organic evolution.

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