The study of cells is evolved into a branch of science with the

Options

A. Discovery of a cells by Robert Hooke
B. Publication of micrographia
C. Invention of microscope by Zacharias jannsen
D. Discovery of bacteria by Leeuwenhoek

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the evolution of the study of cells into a branch of science.

2. **Identifying Key Historical Events**:
- **Invention of the Microscope**: The invention of the microscope is crucial as it allowed scientists to observe cells for the first time. This invention is attributed to Zacharias Janssen in the late 16th century.
- **Discovery of Cells by Robert Hooke**: In 1665, Robert Hooke used a microscope to study cork and discovered cells, which he described in his publication "Micrographia".
- **Discovery of Bacteria by Antonie van Leeuwenhoek**: Leeuwenhoek is known for his work in the late 17th century where he observed bacteria and other microorganisms using a microscope he developed.

3. **Defining the Branch of Science**: The study of cells is known as **Cell Biology**. This field evolved significantly due to the advancements in microscopy.

4. **Conclusion**: The evolution of cell biology began with the invention of the microscope, which enabled the discovery of cells and microorganisms. Therefore, the correct answer to the question is that the study of cells evolved into a branch of science known as **Cell Biology**, initiated by the invention of the microscope.

### Final Answer:
The study of cells has evolved into a branch of science known as **Cell Biology**, primarily initiated by the invention of the microscope.

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