Which of the following statement is not correct about evolution?

Options

A. Fossilized animals provide important information to trace evolution
B. Wing of birds and forelimbs of cows are homologous
C. In higher animals early development stages are similar
D. Variation among individuals are not important in natural selection

Answer

To determine which statement is not correct about evolution, we will analyze each of the provided statements one by one.

### Step-by-Step Solution:

1. **Analyze Statement 1**: "Fossilized animals provide important information to trace evolution."
- This statement is correct. Fossils are crucial for understanding the history of life on Earth. They provide evidence of past organisms and their structures, which helps scientists trace evolutionary changes over time.

2. **Analyze Statement 2**: "Wings of birds and forelimbs of cows are homologous."
- This statement is also correct. Homologous structures are those that share a common ancestry but may serve different functions. The wings of birds and the forelimbs of cows have different functions (flying vs. walking) but share a similar underlying skeletal structure, indicating a common evolutionary origin.

3. **Analyze Statement 3**: "In higher animals, early development stages are similar."
- This statement is correct as well. Many higher animals exhibit similar embryonic stages, which is a reflection of their evolutionary relationships. This phenomenon is known as embryonic similarity and supports the idea of common descent.

4. **Analyze Statement 4**: "Variation among individuals is not important in natural selection."
- This statement is incorrect. Variation among individuals is a fundamental aspect of natural selection. It is the differences among individuals that allow for some to survive and reproduce more successfully than others in a given environment. Without variation, there would be no basis for natural selection to act upon.

### Conclusion:
The statement that is not correct about evolution is **Option 4: "Variation among individuals is not important in natural selection."**

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