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Author Question: The ultimate source of new alleles and genetic variability is ____________________. (Read 614 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.
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
There are more nerve cells in one human brain than there are stars in the Milky Way.