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In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid
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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
Biology, 22.06.2019 06:10
Which process of living things produces water that enters the water cycle
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Biology, 22.06.2019 09:30
How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?
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Question 3- What is pollution?...
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