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How does the cell theory contribute to our understanding of the evolution of life?
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- Do you consider it a reasonable conjecture that cells could have arisen as bare cytoplasm without a cell membrane?Which of the following is not correct?(a) Robert Brown discovered the cell.(b) Schleiden and Schwann formulated the cell theory.(c) Virchow explained that cells are formed from pre-existing cells.(d) A unicellular organism carries out its life activities within a single cell.What is the difference between a plant and animal cell? What do they have in common?
- The eukaryotic cell at left is in the processof cytoplasmic division. Is this cell from aplant or an animal? How do you know?The eukaryotic cell in the photo on the left is in the process of cytoplasmic division. Is this cell from a plant or an animal? How do you know?What are the original components of the cell theory, and what partsof the theory came later?