Question

which of these statements is not a part of the cell theory?
o cells are the smallest units of life.
o all cells are replaced.
o new cells come only from pre - existing cells by cell division.
o all living organisms are composed of one or more cells.

Explanation:

The cell theory has three main tenets: all living organisms are composed of one or more cells, cells are the basic unit of life, and new cells come from pre - existing cells. The statement "All cells are replaced" is not part of the cell theory.

Answer:

All cells are replaced.