key terms

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Across
  1. 1. Developing human from 9 weeks/ 2 months after conception until birth
  2. 3. a single cell released from the ovaries,is capable of developing when fertilized with a sperm cell
  3. 5. Fertilization of an egg by a sperm
  4. 7. Stage of early development after fertilization ( 5 days)
  5. 10. A simple sugar and energy source
  6. 11. Organ that provides nutrients and oxygen to the fetus
  7. 12. Egg is fertilized out outside of the body
  8. 13. Early stage of development after implantation (3-8 weeks)
Down
  1. 2. fetus dies after the 20th week
  2. 4. Organ where the fetus develops during pregnancy
  3. 6. Fertilized egg
  4. 8. Fine hair covering the fetus's body
  5. 9. Release of an egg from the ovary