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Author Question: The _____ collects sound waves and directs them to the auditory canal. A) eustachian tube B) ... (Read 56 times) |
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There are 60,000 miles of blood vessels in every adult human.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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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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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.