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Author Question: Interaction of antigen and antibody activates a series of blood proteins called complement, and ... (Read 103 times) |
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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On average, the stomach produces 2 L of hydrochloric acid per day.