Which of these is not considered a pure substance?
a)
an atom
b) <...
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Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.
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Loss of protected health information collected for research should be directly reported to:
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Pulmonary arteries carry highly oxygenated blood. true or false?
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