The natural selection forces which serves to eliminates the intermediate types is

Options

A. Disruptive selection
B. directional selection
C. Stabilizing selection
D. Normalizing selection

Answer

To solve the question about the natural selection forces that eliminate intermediate types, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Natural Selection**:
- There are three main types of natural selection: disruptive selection, directional selection, and stabilizing selection. Each type affects the population in different ways.

2. **Identify Disruptive Selection**:
- Disruptive selection occurs when extreme phenotypes are favored over intermediate phenotypes. This means that individuals with traits at both ends of the spectrum are more likely to survive and reproduce, while those with intermediate traits are selected against.

3. **Evaluate Directional Selection**:
- Directional selection favors one extreme phenotype over others. In this case, only one extreme form is favored, which does not lead to the elimination of intermediate forms.

4. **Consider Stabilizing Selection**:
- Stabilizing selection favors intermediate phenotypes and selects against extreme variations. This type of selection would actually preserve the intermediate forms rather than eliminate them.

5. **Conclusion**:
- Since the question specifically asks for the type of natural selection that eliminates intermediate types, the correct answer is **disruptive selection**. This is because it is the only type that actively selects against the intermediate phenotypes.

### Final Answer:
The natural selection force that serves to eliminate the intermediate types is **disruptive selection**.

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