Question

the cell was further explained by​

Answer 1

In 1838, a German botanist, Matthias Jakob Schleiden was the first to state that cells are the building blocks of all plants. In the following year, another German botanist, Theodor Schwann stated that cells are the fundamental units of animals too. These statements ended the notion that plants and animals have fundamental differences in structure.

Their discoveries led to the formulation of the ‘Cell Theory’ which states that cells are the basic units of all living organisms (plants and animals). But, the cell theory failed to explain how new cells arise. In 1855, Rudolf Virchow, a German physiologist stated in German ‘Omnis cellula e cellula’ which means that new cells come from already existing cells