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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 741 times) |
Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The familiar sounds of your heart are made by the heart's valves as they open and close.
ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.