In a hospital laboratory, a 10.0 mL sample of gastric juice, obtained several hours after a meal, was titrated with 0.1 M NaOH to neutrality; 7.2 mL of NaOH was required. The patient’s stomach contained no ingested food or drink, thus assume that no buffers were present. What was the pH of the gastric juice?

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#Question id: 2265

#Unit 2. Cellular Organization

Passage through pores in the nuclear envelope is restricted primarily to

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#Question id: 5202

#Unit 11. Evolution and Behavior

Which of the following most correctly describes a shotgun technique for sequencing a genome?

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#Question id: 5014

#Unit 11. Evolution and Behavior

 Following geological time period and major evolutionary event?

I. Devonian                            A. Gymnosperms dominant

II. Jurassic                               B. Amphibians diversify; first reptiles

III. Carboniferous                  C. Mammals appear

IV. Triassic                           D. Seed plants appear

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#Question id: 19477

#Unit 12. Applied Biology

Cry V and Cry VI groups were added; these proteins are primarily 

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#Question id: 18893

#Unit 13. Methods in Biology

In fluorescence microscopy, which of the following performs the function of removing all light except the blue light?