What is ovulation, and how often does it occur in the female reproductive system?
What is ovulation, and how often does it occur in the female reproductive system?

What is ovulation, and how often does it occur in the female reproductive system?
What is the main female reproductive hormone, where is it produced, and what function does it serve at puberty?
How do reproductive hormones affect the development of secondary sex characteristics during puberty?
What roles do hormones play in human reproduction and the menstrual cycle?
What roles do hormones play in human reproduction and the menstrual cycle?
What is oxygen debt, and how does the body use extra oxygen after exercise to remove lactic acid?
What role does the liver play in converting lactic acid back into glucose?
How does blood flow through the muscles help manage lactic acid after exercise?
Why do muscles become fatigued and stop contracting efficiently during long periods of vigorous activity?
What is oxygen debt, and how does it relate to lactic acid buildup during exercise?