Reproduction and Development Lesson 12.3 Reproduction and Development
Vocabulary reproduction fertilization gamete zygote sperm ovum
human reproductive cell 12. 3 Vocab fertilization joining of an egg and a sperm gamete human reproductive cell ovum female gamete reproduction process by which new organisms are produced sperm male gamete zygote cell that forms when an egg and a sperm join together
Essential Questions What do the male and female reproductive systems do? 1 How do humans grow and change? 2
sperm female’s reproductive system. testes testosterone penis semen ovaries estrogen progesterone fallopian tubes uterus fertilized
menstrual cycle menstrual cycle uterus ovary uterus unfertilized
embryo fetus 38 pregnancy uterus vagina infancy childhood adolescence puberty adulthood aging decades