| A | B |
|---|
| Sexual Reproduction | type of reproduction that usually involves 2 parents & the joining of egg and sperm |
| Sperm Cell | the sex cell made by the male |
| Egg Cell | the sex cell made by the female |
| Zygote | forms when a sperm cell fuses with an egg cell |
| Secondary Sex Characteristics | breasts, pubic hair, facial hair, underarm hair, etc. |
| Puberty | time when secondary sex characteristics develop |
| Fertilization | occurs when a sperm cell penetrates the egg's membrane |
| Testicles | male reproductive organs that make testosterone |
| Ovaries | female reproductive organs that produce estrogen/progesterone |
| Ovum | an egg cell |
| Ovulation | monthly process where an egg is released from an ovary; time when a female can become pregnant |
| Menstruation | monthly flow of blood/tissue from the uterus |
| Embryo | fertilized egg attached to the female's uterus |
| Uterus | the place in the female's body where the baby develops |
| Gestation Period | the amount of time a female is pregnant |
