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Did you know?
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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Blood is approximately twice as thick as water because of the cells and other components found in it.
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People about to have surgery must tell their health care providers about all supplements they take.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.