If atmospheric pressure is 760 mm Hg, what would you expect the pressure inside the lungs to be during a forceful
expiration?
a. 0 mm Hg
b. 750 mm Hg
c. 756 mm Hg
d. 760 mm Hg
e. 764 mm Hg
ANSWER: e
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Which of the following statements is consistent with the observation that the genetic code is nearly universal for all currently known life?
A. All organisms can reproduce with any other organism. B. All organisms have a common ancestor. C. All organisms have the same evolutionary genes. D. All organisms arose at the same time in the history of the earth.
The production of second messengers in signal transduction offers at least two advantages, speed and
A. specificity. B. amplification. C. one-to-one stochiometry. D. reversibility. E. affinity.
During the DNA replication process, which of the following organisms would have the fewest origins of replication per cell?
A. a Streptococcus bacterium. B. a yeast cell. C. a human. D. a young oak tree. E. a fruit fly.
Which of the following taxonomic categories are normally included in the general classification of microorganisms?
A. Domain Bacteria B. Kingdom Protista C. Domain Archaea D. All of the above are correct.