identify the scientists who are credited with the cell theory.

The scientists most often credited with formulating the classical cell theory are:

• Matthias Jakob Schleiden – a German botanist who proposed in 1838 that all plants are made of cells.

• Theodor Schwann – a German zoologist who extended this idea in 1839 to animals, concluding that all living organisms are composed of cells.

Many textbooks also highlight:

• Rudolf Virchow – a German physician who added the famous idea that new cells arise only from pre‑existing cells (“omnis cellula e cellula”), completing the modern form of cell theory.