Which one of the following statements is NOT true about evolution?

Options

A. Evolution leads to generation of diverse forms of life
B. Time dating and fossil studies help in understanding of evolution
C. Evolution is not always progressive series of changes that occur in organism
D. Human beings have not evolved from chimpanzees.

Explanation

To determine which statement is NOT true about evolution, we need to analyze each of the provided options carefully.

1. **Understanding Evolution**: Evolution is a process through which species undergo changes over time, leading to adaptations that enhance survival and reproduction. It often results in the generation of diverse forms of life.

2. **Evaluating the Statements**:
- **Option A**: "Evolution leads to the generation of diverse forms."
- This statement is true. Evolution does result in a variety of species and forms due to genetic variations and natural selection.

- **Option B**: "Time dating and fossil studies help in understanding evolution."
- This statement is also true. Fossil records and dating techniques provide crucial insights into the history of life on Earth and the evolutionary relationships between species.

- **Option C**: "Evolution is not always a progressive series of changes that occur in organisms."
- This statement is true as well. Evolution does not always lead to 'better' or 'more complex' organisms; it can also result in simpler forms or changes that are neutral or even detrimental in certain contexts.

- **Option D**: "Human beings have not evolved from chimpanzees."
- This statement is NOT true. Humans and chimpanzees share a common ancestor, but humans did not evolve directly from chimpanzees. This is a common misconception.

3. **Conclusion**: The statement that is NOT true about evolution is **Option D**.

### Final Answer:
**Option D: Human beings have not evolved from chimpanzees.**

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