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Author Question: Menstruation normally occurs: a. After intercourse b. Every day c. Every week d. Every 28 ... (Read 35 times) |
Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).