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Author Question: A person who has a sexual preference only for persons of the same sex is called a heterosexual. ... (Read 34 times) |
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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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Your heart beats over 36 million times a year.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Everyone has one nostril that is larger than the other.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
Paland and Lynch demonstrated the importance of sexual reproduction in reducing the frequency of mal
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r