Prenatal Development

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Across
  1. 6. developing human around two weeks after fertilization
  2. 9. type of development in womb from fertilization to birth
  3. 10. hormone that prepares your uterine lining for pregnancy
  4. 12. acronym for abnormalities caused by drinking of pregnant woman
  5. 15. type of reflex when a newborn baby is frightened by sound or movement
  6. 18. transfers nutrients and oxygen from mother to embryo
  7. 19. release of eggs from ovary
  8. 20. decreased responsiveness with repeated stimulation
  9. 21. the number of months for a baby to be born
Down
  1. 1. using sound waves to picture baby on a screen
  2. 2. when a sperm penetrates the egg’s outer layer
  3. 3. stage that starts around ninth week until birth
  4. 4. what you call a newborn when they are equipped with automatic survival responses
  5. 5. no longer able to reproduce
  6. 7. developing human around nine weeks after conception
  7. 8. chemicals and viruses that can cause harm to embryo
  8. 11. stage that lasts from third to eighth week of pregnancy
  9. 13. type of reflex when stroking the palm of a newborn baby’s hand causes the baby to close fingers
  10. 14. shortest stage of fetal development
  11. 16. fertilized egg
  12. 17. another word for conception