20. Many years 90, scientists working with cells developed what is now known as the
cell theory
Cells come in a variety of shapes and sizes
The cell theory states
All tving things are composed of one or more cells
Cells are the basic units of structure and function in an organum
Cells come only from the reproduction of existing cells
Cells from animals only create other animal cells.
Cells can live a very short time
Which of the following observations best supports the cell theory!
Cells have different names for different structures
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