Across
- 4. the baby during the third week
- 5. two X chromosomes
- 8. occurs about every 28 days
- 10. deoxyribonucleic acid
- 11. male cell
- 12. sac surrounds the embryo
- 13. tube connects the ovary to the uterus
- 14. when sperm fertilizes the ovum
- 16. presentation when the baby's head is not turned
Down
- 1. when a zygote implants itself in the lining of the uterus
- 2. one x and one y chromosomes
- 3. where a baby develops
- 6. the weaker gene
- 7. the stronger gene
- 8. an egg cell
- 9. cord connects the baby to the placenta
- 15. another name for cesarian section