Specialized cell surface proteins on the neck of Mycoplasma mobile allow for ________.
A. flagellar motility
B. "inchworm" motility
C. "rolling" motility
D. gliding motility
Answer: D
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Glycolysis and the TCA cycle are two of the most important catabolic pathways in chemoorganotrophs.
Answer the following statement true (T) or false (F)
As it leaves the lung in the pulmonary vein, blood is ________ saturated with oxygen.
A) 90% B) 98% C) 108% (supersaturated) D) 100% (completely) E) 75%
Of all the possible amino acids, all living organisms make use of only the same 20 amino acids. This supports the idea that
A) only a limited number of DNA mutations are possible. B) bacteria, animals, and plants developed independently. C) natural selection drives evolution. D) only 20 amino acids exist on Earth. E) all living things are derived from a single common ancestor.
Animals that do not control internal water concentration also typically do not control the concentrations of ions like sodium and potassium.
Answer the following statement true (T) or false (F)