How Scientists Discovered Cells

Describe the historical development of cell theory and explain how organisms are composed of one or more cells, which come from pre-existing cells and are the basic unit of structure and function.

Part of The student knows that organisms have an organizational structure and variations can influence survival of populations

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Intro

How Do We Know About Cells?

Every living thing is built from cells, but cells are far too small to see without help. In this lesson, you will learn how scientists discovered cells over time and why every cell you have ever heard of came from another cell that was already alive.

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Organisms, Populations, and Communities47 of 49Sorting Living Things Into Groups