1. Reproduction and Development
Lesson 12.3
Reproduction and Development

2. Vocabulary
reproduction
fertilization
gamete
zygote
sperm
ovum

3. 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

4. Essential Questions
What do the male and female reproductive systems do? 1
How do humans grow and change? 2

5. sperm
female’s reproductive system.
testes
testosterone
penis
semen
ovaries
estrogen
progesterone
fallopian tubes
uterus
fertilized

6. menstrual cycle
menstrual cycle
uterus
ovary
uterus
unfertilized

7. embryo
fetus 38
pregnancy
uterus
vagina
infancy
childhood
adolescence
puberty
adulthood
aging
decades