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Author Question: Which of the following structures is common to both the digestive and respiratory system? Esophagus ... (Read 58 times) |
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.