Robert Brown discovered the nucleus
1965
Described & named the nucleus
The name of the theory that Schleiden and Schwann developed is the cell theory.
He said that cells can reproduce cell
nothing
she didn't
he stated that the cell is a structural unit of an organism.
James Watson
plants are composed of cells
James Watson
Zacharias Janssen did not contribute to the cell theory. He is credited with inventing the first compound microscope in the late 16th century with his father, Hans Janssen. This invention was crucial for the development of cell theory by later scientists.
Gregor Mendel did not contribute to cell theory. Mendel is known for his work in genetics and the study of inheritance through experiments with pea plants. Cell theory was formulated by scientists like Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.