Prenatal Development

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Across
  1. 1. Unborn baby 8-9 weeks
  2. 4. Baby dies before 20 weeks
  3. 8. Having more than one baby
  4. 10. Egg splits into two
  5. 11. Fertilized egg
  6. 13. Sperm and egg unite
Down
  1. 1. Babies from two different eggs
  2. 2. Male cell needed for reproduction
  3. 3. Unborn baby 3-8 weeks
  4. 5. Substitute to carry the baby
  5. 6. The inability to have children
  6. 7. Baby dies after the 20th week of pregnancy
  7. 9. Health problems or inability to live
  8. 12. Inherited characteristic
  9. 14. A tissue very rich in blood cells