Introduction to Cells

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Across
  1. 3. A 3-part theory that explains cells and where they come from
  2. 5. The maintaining of stable internal conditions in a changing environment
  3. 8. Allows some things through but not others
  4. 10. The second step of the cell cycle; two nuclei are produced
  5. 11. An explanation of WHY something occurs in nature
  6. 12. The smallest part of living things
  7. 13. A description of WHAT happens in nature
  8. 14. The genetic material within a cell
Down
  1. 1. The semi-permeable membrane that surrounds the cell
  2. 2. The last step of the cell cycle; the two new cells move apart
  3. 4. Made of one cell
  4. 6. The first step of the cell cycle; the cell grows and DNA is copied
  5. 7. Made of many cells working together to support this life form
  6. 9. Made of many cells