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Author Question: American power plants usually supply 120 V ac. (a) At what frequency is this voltage supplied? ... (Read 14 times) |
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
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There are more sensory neurons in the tongue than in any other part of the body.