ICSE BoardEnglish MediumSTD 9BIOLOGYCell The Unit of Life2 Marks
Question
What is the cell theory? Who propounded it and when?
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Answer
All animals and plants are composed of cells, which serve as the units of structure and function. This, in short, is called the Cell Theory,
Cell theory was propounded by Theodor Schwann and Matthias Schleiden in the year $\text{1839}$ and was modified by Rudolf Virchow in $\text{1858}$.
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