Answer:
sex is the insertion of an erected penis into the vagina of a female. it's important cos if u don't have sex, u cannot give birth
Lactose glucose molecules joined together form
It is B , I know this thanks to the fact I took PE and our teacher teach us about the body !
C. Sperm and egg cells are made during meiosis
I believe skeletal muscle fibers are dependent on oxygen and steady blood flow. Hope this helps.
