Question

Describe how the cell theory developed and changed over time.

Answer 1

All living organisms are composed of cells, and all cells arise form others cells. these simple and powerful statements from the basis of the cell theory, frist formulated by a group of European biologists in mid 1800s. so fundement thread ideals to biology that is easy to they were not always thought to be true.

Answer 2

Cell theory was initially formulated by two botanist named Schwann and Schleiden.

• The two botanist proposed two postulates:
• All living organisms are made up cells.
• The cell is the basic unit of life.
• Later in 1858 Rudolf Virchow added another postulate which suggested that all cells arise from the pre-existing cells. He stated in theory all living organisms develop from single or multiple cells.

Hence, cell theory was proposed by Schwann, Schleiden and Rudolf Virchow.

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