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Author Question: Humans can recognize approximately ___ odors. a. 1,000 b. 10,000 c. 100,000 d. ... (Read 14 times) |
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.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
In 1864, the first barbiturate (barbituric acid) was synthesized.
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.