Most CO2 is transported to the lungs in which of the following ways?
A) dissolved in the plasma
B) as carbonic acid
C) bound to water
D) attached to hemoglobin or as bicarbonate ions
Answer: D
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To distinguish two organisms using the morphological species concept, a scientist would ____
a. perform a genetic analysis on the two organisms b. look at the appearance of two organisms c. mate the two organisms to see if viable offspring result d. observe the mating rituals of the two organisms
e. trace the common ancestry of the two organismsPathogenic microbes are the only kind of microbes capable of ruining an experiment.
A) True B) False
What can you conclude from data in the figure?
A) The lipase from bacteria X is insensitive to changes in pH. B) Only the lipase from bacteria Y denatures at high temperatures. C) Bacteria X likely lives in an environment that undergoes large changes in temperature. D) The lipase from bacteria Y is more active than the lipase from bacteria X at 20°C.
You are viewing a sputum smear that has been stained with an acid-fast stain. On this smear you see 5 um long pink rod-shaped bacteria. You can conclude that:
A.These are gram- normal microbiota B. There are no acid-fast bacilli seen in this specimen C. These are acid-fast normal microbiota D. There are acid-fast bacilli in this specimen