Cell Theory

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Across
  1. 3. All organisms are made up of one or more ______.
  2. 5. Zacharias Jansen developed the first ________ in the early 1600s.
  3. 8. All cells come from _______ cells.
  4. 9. Cells are the __________ of structure and organization in all organisms.
  5. 10. Robert Hooke discovered the cell by looking at a piece of ______.
Down
  1. 1. Richard ________ proved that cells really do come from other cells.
  2. 2. __________ was discovered by Anton von Leeuwenhook.
  3. 4. Robert _________, and English scientist, is credited for the term "cell."
  4. 6. There are three parts to the ____________.
  5. 7. Theodor Schwann, another German scientist, discovered that all ________ are made up of cells.
  6. 8. Matthias Schleiden, a botanist, discovered that all _______ are made of cells.