<h2>Scientific Theory of Cells</h2>
The scientific theory of cells, also referred ‘Unified Cell Theory’ or ‘Unifying Principle of Biology‘ was proposed by scientists like Theodor Schwann, Matthias Schleiden, and Rudolph Virchow.
Explanation:
The basic principles of this theory are:
- All living or biological organisms, unicellular or multicellular, are composed of one or more number of cells accordingly.
- Cells are the ‘basic unit of life’.
- Life begins from cells and new cells are reproduced from ‘pre-existing cells’.
An organism is unicellular if it has a single cell like the amoeba, paramecium etc. An organism is multicellular if it has multiple cells like birds, reptiles, human beings, etc. A single cell can be simple or complex but any living organism is essentially composed of at least a single cell.
