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Author Question: Currently, the worldwide production of weapons is: a. increasing b. decreasing c. remaining the ... (Read 84 times) |
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
The horizontal fraction bar was introduced by the Arabs.
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.