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Did you know?
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.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.