Stomach cells are moderately well adapted to the acidity and protein-digesting activities in the stomach by having _____
A) a sufficient colony of H. pylori
B) a thick, mucous secretion and active mitosis of epithelial cells
C) a high level of secretion of enzymes by chief cells
D) a high level of secretion of bases from parietal cells
E) a cell wall impermeable to acid
Answer: B
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a. thallus b. hyphae c. peptidoglycans d. pellicles
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Regarding the structure of DNA, the covalently arranged combination of a deoxyribose and a nitrogenous base would be called a(n) ________
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