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Author Question: Quantitative variables usually represent membership in groups or categories. Indicate whether the ... (Read 31 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Everyone has one nostril that is larger than the other.
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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.