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Across
  1. 2. A structure linking the umbilical cord to the wall of the uterus
  2. 3. Carry messages from one part of the body to another
  3. 5. Used for energy e.g Pasta
  4. 6. Where most chemical reactions in a cell take place
  5. 7. Plants make their own food in this process
  6. 8. A reaction in which thermal energy and light energy are produced
  7. 10. The organism formed when a sperm and an egg combine
  8. 13. Not Breathing
  9. 14. A process that moves air in and out of the lungs
  10. 15. Several tissues working together
Down
  1. 1. Show that photosynthesis has been going on
  2. 4. The male gamete
  3. 9. A state of matter
  4. 11. The point of rotation
  5. 12. A period of development in the body, from 11 to 18 years of age