CELL THEORY
The cell theory was made by
the observations of three scientists, Matthias Schleiden, Theodor Schwann,
and Rudolph Virchow. Schleiden concluded that all plants were composed
of cells. Schwann concluded the same thing only about animals.
Virchow determined that cells come only form other cells.
The Cell Theory
1) All living things are composed
of cells.
2) Cells are organisms' basic
units of
structure and function.
3) Cells come only from existing
cells.