Grade 8 Integrated - Units 3-5 Vocabulary review

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Across
  1. 5. Blood low in oxygen.
  2. 6. Blood rich in oxygen.
  3. 8. A stimulant found in coffee and tea.
  4. 10. Structures in a cell that contain DNA.
  5. 13. Parts of the DNA that determine traits.
  6. 16. The process of breathing.
  7. 17. Medicines used to fight bacterial infections.
  8. 18. System The group of organs that help you breathe.
  9. 19. A substance found in tobacco that is addictive.
Down
  1. 1. Cells used for sexual reproduction; includes sperm and egg cells.
  2. 2. The cell formed when an egg cell and sperm cell combine.
  3. 3. The female reproductive cell.
  4. 4. Vessels Tubes in the body that carry blood.
  5. 7. When a substance moves from an area of high concentration to low concentration.
  6. 9. The process of producing cellular energy with oxygen.
  7. 11. The male reproductive cell.
  8. 12. The joining of an egg cell and a sperm cell.
  9. 14. A process that changes substances into different substances.
  10. 15. Exchange The process of oxygen and carbon dioxide moving between the lungs and blood.