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Author Question: ________ are chemical agents released into the synaptic cleft that allow nerve cells to communicate ... (Read 43 times) |
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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People about to have surgery must tell their health care providers about all supplements they take.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.