Across
- 3. Marks the beginning of puberty for women
- 4. The type of motor coordination that uses large muscle groups
- 7. The orderly sequence of biological growth
- 9. Unused brain connections are pruned
- 11. End of menstruation and the ability to have kids
- 12. The type of motor coordination that uses small muscle groups
Down
- 1. Marks the beginning of puberty for men
- 2. chemicals and viruses that can harm an embryo/fetus
- 5. Nonreproductive sexual traits
- 6. The reflex that occurs when baby's are touched on the cheek
- 8. Transition period from childhood to adulthood
- 10. Reproductive organs and external genitalia