Fill in the blanks:
Robert Hooke published his work in a book titled ____________

Explanation

**Step-by-Step Solution:**

1. **Identify the Scientist**: The question refers to Robert Hooke, who was a notable scientist known for his contributions to biology and microscopy.

2. **Recall the Publication**: Robert Hooke is famous for publishing his work on cells in a book.

3. **Remember the Title of the Book**: The title of Robert Hooke's book is "Micrographia." This book was published in 1665 and contains detailed observations of various specimens he examined under a microscope.

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