The book "Philosophie Zoologique" was written by `:`

Options

A. Darwin
B. Lamarck
C. Mendel
D. Heackel

Answer

**Step-by-Step Solution:**

1. **Identify the Book and Author**: The question asks about the book "Philosophie Zoologique." We need to determine who wrote this book.

2. **Research the Author**: The book "Philosophie Zoologique" was written by Jean-Baptiste Lamarck, a French naturalist.

3. **Publication Year**: This book was published in the year 1809. It is significant as it presents pre-Darwinian theories of evolution.

4. **Understanding Lamarck's Contribution**: Lamarck is known for his ideas on evolution, which are often referred to as "Lamarckism." This theory suggests that organisms can pass on traits acquired during their lifetime to their offspring.

5. **Evaluate the Options**: The options provided are:
- Darwin
- Lamarck
- Mendel
- Haeckel

6. **Eliminate Incorrect Options**:
- **Darwin**: Known for "On the Origin of Species," not "Philosophie Zoologique."
- **Mendel**: Known for his work on genetics, specifically with pea plants, not related to this book.
- **Haeckel**: Known for the biogenetic law and recapitulation theory, not for this book.

7. **Conclusion**: The correct answer is **Lamarck** since he is the author of "Philosophie Zoologique."

**Final Answer**: The book "Philosophie Zoologique" was written by **Lamarck**.

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