Biology, 24.05.2021 23:20 kentavonwilliam
Which is an example of mechanical digestion that occurs in the human digestive system?
A. Saliva in the mouth acts to moisten and break apart food molecules.
B. The muscular lining of the esophagus pushes food from the mouth to the stomach.
C. The muscular walls of the stomach act to churn food back and forth.
D. Small molecules, such as glucose, are absorbed into the blood from the small intestine.
Answers: 1
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Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?
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Which is an example of mechanical digestion that occurs in the human digestive system?
A. Saliva in...
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