"All cells come from pre-existing" is part of the cell theory most directly supports the claim that a single-celled organism can carry out all metabolic functions of life.
Which three major cell theories are there?
The following three ideas make up the cell theory: Cells are the basic building block of every living thing. The fundamental pillar of structure and hierarchy in all living things is the cell. From pre-existing cells, new cells are formed.
Modern cell theory
hypothesis that cells proliferate and pass on genetic information; that energy flows within cells; and that cells are the fundamental structural, functional, and organizational elements of both single-celled and multicellular animals.
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