<Li> All cells are basically the same in chemical composition in organisms of similar species . </Li> <P> The modern version of the cell theory includes the ideas that: </P> <Ul> <Li> Energy flow occurs within cells . </Li> <Li> Heredity information (DNA) is passed on from cell to cell . </Li> <Li> All cells have the same basic chemical composition . </Li> </Ul> <Li> Energy flow occurs within cells . </Li>

Who discovered that all cell comes from existing cells