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Author Question: Which of the following types of computer is used for weather forecasting on a national or worldwide ... (Read 26 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.
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.
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).