To categorize: The structural and functional similarities in cells. Introduction: All life forms are formed of cells. Cells are very small to be seen with the naked eye. The size of a cell ranges from 1 µm to 100 µm in diameter. Robert Hooke was the first person to observe the cells under a microscope during 1665. He also coined the term “cell”.

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Chapter 4.1, Problem 3LO

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To categorize: The structural and functional similarities in cells.

Introduction: All life forms are formed of cells. Cells are very small to be seen with the naked eye. The size of a cell ranges from 1 µm to 100 µm in diameter. Robert Hooke was the first person to observe the cells under a microscope during 1665. He also coined the term “cell”.

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