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Blood is approximately twice as thick as water because of the cells and other components found in it.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.