Question

cells & cellular processes
1700
1838
matthias schleiden concluded all plant parts were made of cells.
1800
1900
which of the following theories did these discoveries lead to?
a. the germ theory
b. the cell theory
c. the theory of evolution
d. the atomic theory

Explanation:

Matthias Schleiden's discovery about plant cells, along with Theodor Schwann's work on animal tissues (implied), contributed to the development of the cell theory, which states that all living things are composed of cells. Germ theory relates to microorganisms causing disease, evolution theory to species change over time, and atomic theory to matter's structure—none match the cell - related discovery here.

Answer:

B. the cell theory