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Biology, 22.06.2019 02:00
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
Biology, 22.06.2019 02:30
What were the main components of earthβs earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen
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Biology, 22.06.2019 03:50
What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cellaβs eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen
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Biology, 22.06.2019 06:00
How can you tell the difference between rough er from smooth er?
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What are the two forces that drive the water cycle...
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