cell theory
cell doctrine

These ideas still are the basic ideas of cell theory.

One explanation of life is called the cell theory.

The cell theory has three basic points: All living things are made up of cells.

Despite these beliefs, Braun made important contributions in the field of cell theory.

They have a claim to some priority in the cell theory.

Montgomery's work in medicine included the study of cell theory.

His name is especially known for his work on the cell theory.

The three parts to the cell theory are as described below:

The cell theory is a widely accepted explanation of the relationship between cells and living things.

The cell theory holds true for all living things, no matter how big or small.