In case of evolution, which of the following statements is not correct ?

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 regarding evolution is not correct, we will analyze each provided statement step by step.

### Step 1: Analyze the First Statement
**Statement:** Fossilized animals provide important information to trace evolution.
**Analysis:** Fossils are the preserved remains or traces of organisms from the past. They are crucial for understanding evolutionary history as they provide evidence of how species have changed over time. This statement is **correct**.

### Step 2: Analyze the Second Statement
**Statement:** Wings of birds and forelimbs of cows are homologous organs.
**Analysis:** Homologous organs are those that share a common structure but may serve different functions. The wings of birds and the forelimbs of cows have similar bone structures but serve different purposes (flying vs. walking). This statement is **correct**.

### Step 3: Analyze the Third Statement
**Statement:** In high animals, early development stages are similar.
**Analysis:** Many higher animals (vertebrates) exhibit similar embryonic development stages, which is an example of evolutionary relationships. This similarity in early development stages indicates a common ancestry. This statement is **correct**.

### Step 4: Analyze the Fourth Statement
**Statement:** Variation among individuals is not important in natural selection.
**Analysis:** Natural selection, as proposed by Charles Darwin, relies heavily on variation among individuals within a population. Variations allow some individuals to adapt better to their environment, leading to survival and reproduction. Therefore, this statement is **incorrect**.

### Conclusion
The statement that is **not correct** is: **"Variation among individuals are not important in natural selection."**