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Author Question: When you receive your bank statement, the bank's balance should always agree with your account register. (Read 44 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.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.