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Author Question: In IDEF1X, a category cluster includes BLACK and WHITE, but does not show GREY, which is also a ... (Read 36 times) |
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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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.
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The human body produces and destroys 15 million blood cells every second.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.