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Lungs are a part of the excretory system. Lungs produce a waste when we exhale which is Called A. blood B. Oxygen c. formaldehyde d. Carbon dioxide
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How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.
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Are the layers of rock above and below the coal older or younger?
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Which of the following organisms are capable of self-fertilization? a. plants b. tigers c. humans
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Lungs are a part of the excretory system. Lungs produce a waste when we exhale which is
Called A. b...
English, 29.08.2020 03:01