biology

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Across
  1. 2. Control center of the cell.
  2. 6. Tiny organism seen by Leeuwenhoek.
  3. 9. Means very small.
  4. 10. Schwann studied these.
  5. 11. Smallest unit of heredity.
  6. 12. Basic unit of life.
  7. 13. What living things do.
Down
  1. 1. Schleiden studied these.
  2. 3. Needed for all life processes.
  3. 4. Molecule that carries genetic information.
  4. 5. What cells are the basic unit of.
  5. 6. A characteristic of life.
  6. 7. All living things are made of them.
  7. 8. What living things need to do.
  8. 12. Material Hooke looked at.