Answer:
d. 60
Explanation:
Both the American College of Sports Medicine and the U.S. Department of Health and Human Services recommend at least 60 minutes of exercise daily for youth under the age of 18. This has been determined to be a good daily dose of exercise in order to allow healthy growth and development of youth below the age of 18th. Which is also why Physical Education classes in the United States are mandatory and last 60 minutes.
1.) The process of ejaculation starts with : A testis will produce sperm cells. These sperm cells will travel through the vans deferens. The accessory glands (seminal vesicle and prostate gland) will produce a fluid that will be combined to the sperm cells that will be semen.
2.) The process of menstruation starts with: An ovary will produce an egg cell every month that will travel through the fallopian tube and will go to the endometrium, the lining of the uterus. Since the egg cell is not fertilized, it will not be remained to the lining. Instead, the endometrium that has many blood vessels will shed blood containing the egg cell and that is the menstrual blood.
(Sorry for the wrong grammars)
What are the answer choices? I can help once I'm given the choices
