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Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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Some of the common structural abnormalities seen in chromosomes. (a) In a deletion, part of a chromo Some of the common structural abnormalities seen in chromosomes. (a) In a deletion, part of a chromo
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Video: Griffith's experiments

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