Matthias Schleiden used a microscope to observe that the parts of plants consist of cells. Theodor Schwann used a
microscope to observe that the parts of animals consist of
cells.
Which two statements did the work of Schleiden and Schwann add to the cell
theory?
A. All living things are made of one or more cells.
B. All cells come from other living cells.
C. Cells contain genetic material that consists of DNA.
D. The cell is the basic structural and functional unit of life.

The work of Schleiden and Schwann provided to the Cell Theory the conclusions relating to that all living things are made of one or more cells and the cell is the basic structural and functional unit of life.

Explanation:

Matthias Schleiden was a German botanist who in 1937, while studying plant tissue under the microscope, observed that all plants are made up of cells.

In 1938, physiologist Theodor Schwann performed an experiment similar to Schleiden's, but using animal tissue, concluding that animals are made up of cells.

By bringing together the findings of both scientists, two important conclusions for Cell Theory were reached:

Both conclusions are part of the cellular theory, as it is known today.

Regarding other options:

    B. All cells come from other living cells was a conclusion provided by Rudolf Virchow.

    C. Cells contain genetic material that consists of DNA is an argument that is not part of the cellular theory. In fact, the DNA would not be discovered until 1953.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

but there is no

i guess you forgot putting it.