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Author Question: The trichromatic theory of color vision is also known as the _____ theory. A) Seurat-Signac B) ... (Read 70 times) |
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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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Excessive alcohol use costs the country approximately $235 billion every year.