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Author Question: ________ The enamel is the hardest and most compact part of the tooth. Indicate whether the ... (Read 48 times) |
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Thyroid conditions may make getting pregnant impossible.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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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.