I get it!And the boys produces sperm cells,testorones,taller,strong,and facial hair.
After birth their are many steps and development until Adulthood.
Neonatal Period:the frist 4 weeks after birth.Baby's body adapts to the world outside the uterus. Infancy:the baby learns how to crawl,walk,stand,and brain develops. Childhood:learns to speak,read,draw,run,ect..it ends when puberty starts. Adolescence:when body goes through puberty. Adulthood:(starts after adolescence & last Target of development)the humans bones stop growing,skin begins to wrinkle,and female's undergo menopause.
Now,because you know all about the humans development..''How does the reproductive system develop & function in the humans body?''
The reproductive system develop by going into puberty,so the body gets ready to produce.The function in the humans body is that the oyster produce sperm cells and testosterones.While female produce Menstual Cycle to prepare for birth.