Question

the cell theory was proposed by

Answer 1

Theodor Schwann and Jacobs Schleiden proposed cell theory.

Answer 2

Answer:

Cell theory was proposed by Schleiden and Schwann in 1839. The theory was further extended by R. Virchow (1855). It states that:

1)All plants and animals are made up of cells.

2)Cell is the basic unit of life

3)All cells arise from pre-existing cells.