(G6) Chapter 12: Human Body Systems

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Across
  1. 6. the process in which a sperm joins with an ovum
  2. 8. the first cell formed after fertilization
  3. 9. the process by which organisms produce new individuals
  4. 11. the body system that releases hormones to regulate body processes
  5. 14. a disease‑causing organism
  6. 15. a reproductive cell such as a sperm or ovum
  7. 16. the female reproductive cell
  8. 19. the ability of an organism to maintain stable internal conditions
  9. 20. the body system that removes liquid wastes from the blood
  10. 21. a protein that speeds up chemical reactions in the body
Down
  1. 1. the body system that breaks down food into nutrients the body can use
  2. 2. the body system that transports oxygen nutrients hormones and wastes through the body
  3. 3. the body system that includes the skin and helps protect the body and regulate temperature
  4. 4. the body system that supports and protects the body
  5. 5. the body system responsible for producing offspring
  6. 7. the body system that brings oxygen into the body and removes carbon dioxide
  7. 10. the body system that controls responses and sends signals throughout the body
  8. 12. the body system that allows movement and helps maintain posture
  9. 13. the body system that protects the body from disease and pathogens
  10. 17. a substance the body needs for energy growth and repair
  11. 18. the male reproductive cell