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Author Question: The breasts provide nourishing milk for the embryo. Indicate whether the statement is true or ... (Read 11 times) |
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There are more bacteria in your mouth than there are people in the world.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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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.