The work of schleiden and schwann can be summarized by saying that

Cells are the basic unint of all organisms and all organisms are made up of cells.

Explanation:

Schleiden and Schwann co-founded the cell theory that states that the cell is the basic unit of life and all living things are composed of one or more of them.

Originally they proposed spontaneous generation as the cell's origination but currently, the accepted cell theory stated that cells arise from other cells in a process known as cellular division.

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