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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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.
Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
![An oscillating needle 1 or 2 inches Hg below normal could indicate an incorrect air–fuel mixture ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_4_15_51_29687328.png)
![Many fuel-control oxygen sensors are located in the exhaust manifold near its outlet so that the ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_10_29_33_299392500.png)
![Port fuel injectors spray atomized fuel into the intake manifold about 3 inches (75 mm) from the ...](https://biology-forums.com/gallery/30/medium_548020_30_05_17_11_26_24_300012185.png)