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Acid rain is the direct result of acid released by burning fossil fuels. select the best answer from the choices provided ot o f true or false
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Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.
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Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
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The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.
Answers: 1
For some reason (not yet understood) more male babies are conceived(born) than female. by childhood...
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