There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
Stem Cell
The basic unit of life - cell
A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain
Face-to-face communication is the richest channel to relay a message from the sender to a receiver.