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Author Question: Children's expectations for reinforcement of sex-typed behavior may influence their behavior as much ... (Read 35 times) |
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Your heart beats over 36 million times a year.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.