1. Which description best defines a cell?
2. What central idea does cell theory use to explain the organization of living organisms?
3. Which statement correctly combines the main principles of cell theory?
What is the basic structural and functional unit of life?
The cell.
What does cell theory state about the organization of life?
Life is organized at the cellular level.
According to cell theory, how are organismal functions explained?
Through cells.
What are all living organisms composed of?
One or more cells.
From what does every cell arise?
From a pre-existing cell.
Who observed compartments in cork and named them cells in 1665?
Robert Hooke
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