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Author Question: Silicates are compounds composed of A) silicon only. B) silicon and metals. C) silicon, oxygen ... (Read 82 times) |
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
There are approximately 3 million unintended pregnancies in the United States each year.
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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.