Biology

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Across
  1. 3. Anything with Mass
  2. 6. Doughnut shaped transport protein
  3. 11. Humans have 23 pairs called...
  4. 12. DNA replication
  5. 13. Positive particle in the nucleus
  6. 14. Long strand of genes
  7. 15. Body Cells
Down
  1. 1. Neutral particle in the nucleus
  2. 2. Human Gametes
  3. 4. Special proteins in which actively transport ions resulting in an ionic gradient
  4. 5. Passage of 2 materials across a membrane
  5. 7. Unit of Matter
  6. 8. Negative particle orbiting type of atom
  7. 9. Import of materials to the cell by infolding of the plasma membrane
  8. 10. Atom of the same element with different neutrons