Rudolf Virchow is considered a key figure in the world of medicine, but he is best known for his Omnis cellula e cellula A key component to our current Cell Theory, which BEST describes Virchow's contribution to modern Cell Theory?
A) Cells are the basic unit of life.
B) Plant cells differ from animal cells.
C) All cells come from pre-existing cells.
D) Cells are the basic unit of structure and function in living things.