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Across 2. period when the zygote develops into a baby 7. scrotum holds the testes and the __________ 9. what the embyo is called after two months 11. hormones cause the uterus to _______ 12. Helps the sperm move to the seminal vesicle (2 Words) 13. forms within third week of pregnancy (2 Words) 15. lower part of the uterus that connects to the vagina 16. holds the testes and the epididymis 20. connects the placenta to the embryo (2 Words) 21. cycle in which an egg is released from one of the two ovaries monthly (2 Words) 23. Produces the sperm 24. menstrual flow that consists of blood and tissue cells from the thickened line of the uterus 26. internal female organ that is the same size and shape of an almond 28. the eyes, nose, and mouth develop at ____ weeks 29. series of muscular contractions of the uterus 30. amniotic fluid acts as a _______ 33. sperm releases an ______ that speeds up reactions in the egg 35. female sex organ 36. male sex organ 37. pregnancy is a ____ month period 38. forms when the nucles of a sperm joins with the nucleus of an egg 39. the menstrual cycle starts with girls ages _______ (3 Words)

Down 1. during the ninth month of development, the fetus is _____ cm long 3. sperm changes the _______ ______ of an egg so that no other sperm can get in (2 Words) 4. amniotic sac forms during the _____ week of pregnancy 5. when the production of hormones slow down 6. responds to chemical messages from the hypothalamus (2 Words) 8. Place where the sperm is provided with a liquid called semen (2 Words) 10. test that can determine the sex of the fetus in the fourth month 14. more ________ contractions push the baby out during labor 17. up to ___ _______ sperm can fit into the vagina (2 Words) 18. the embyo recieves _________ until placenta develops 19. diffuses nutrients from mother"s blood to embryo without mixing it 22. The menstrual cycle causes a series of _______ 25. where the egg is fertilized 26. at 2 months, embryo develops major ______ 27. a zygote that iis attached to the wall of the uterus 30. sperm are better produced at ____ temperatures 31. where an egg goes during ovulation to be fertilized 32. zygote reaches the uterus after _______ days 34. female sex cell