What is Theodor Schwann's most significant contribution to biology?
Discovery of pepsin
Invention of the term "metabolism"
Extension of cell theory to animals
Discovery of the organic nature of yeast
Answer
Theodor Schwann's most significant contribution to biology is the extension of cell theory to animals. He demonstrated that animal tissues, like plant tissues, are composed of cells, thus establishing the universality of the cell as the basic unit of life.
The Fascinating World of Theodor Schwann: A Quiz on the Father of Modern Cell Theory