A.I. Oparin wrote

Options

A. Origin of Species
B. Origin of Life
C. Philosophic Zoologique
D. The Planet

Answer

**Step-by-Step Solution:**

1. **Identify the Author**: The question asks about the works of A.I. Oparin. Recognize that A.I. Oparin refers to Alexander Ivanovich Oparin, a Russian biochemist known for his contributions to the theory of the origin of life.

2. **Review the Options**: The options given are:
- A) Origin of Species
- B) Origin of Life
- C) Philosophic Zoologic
- D) The Planet

3. **Match the Author to the Book**:
- **Origin of Species**: This book was written by Charles Darwin, who is known for his theory of evolution.
- **Origin of Life**: This book was authored by A.I. Oparin and discusses the biochemical processes that may have led to the emergence of life from non-living matter.
- **Philosophic Zoologic**: This work is attributed to Jean-Baptiste de Lamarck, another significant figure in evolutionary biology.
- **The Planet**: This book is unrelated to the topic and was written by Gustav Holst.

4. **Conclusion**: Based on the analysis of the options, the correct answer is that A.I. Oparin wrote "Origin of Life".

5. **Explanation of the Book's Content**: The book "Origin of Life" discusses the molecular origins of life and presents the idea that life evolved from non-living chemical compounds, contributing to the understanding of the biochemical origins of life on Earth.

**Final Answer**: A.I. Oparin wrote "Origin of Life".

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