Answer:
claim that cells were the basic unit of all plant matter
Explanation:
In 1883, the German botanist Matthias Schleiden came to the conclusion that all plants were built of cells, while the German zoologist Theodor Schwan, only a year later, concluded the same for animals.
Together they lay the foundation of the so-called cellular theory which represents a fundamental discovery in biology. This theory contains three basic postulates:
- All living organisms are made up of one or more cells;
- The cell is the basic unit of structure and function of the organism;
- Cells are formed only by the reproduction of existing cells.
