In the 1800’s two scientists, Theodor Schwann and Matthias Schleiden, studied different types of organisms. After many years of studying a great variety of organisms, they drew similar but independent conclusions about their observations.
· Schwann studied animals and concluded that all animals are made of cells.
· Schleiden studied plants and concluded that all plants are made of cells.
What statement was developed most directly from these conclusions and is part of the modern cell theory?
Cells contain hereditary information.
Cells exist only in multicellular organisms.
The functions of living things occur in cells.
Living things are composed of cells.