Answer:
Answer 1. Robert Brown used a microscope to discover the nucleus. Most recently, the development of light and electron microscopes have enabled scientists to view living cells and molecules within cells respectively.
Answer 2. The contents of the cell, or the structures of the cell, allow the cell to be "specialized." Together with the cell's proteins, they allow the cell to do specific things. They allow a cell to act like a neuron or a bone cell or a skin cell.
Explanation:
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