High frequencies are detected by hair cells near the base of the cochlea
____________________ Indicate whether the statement is true or false.
T
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Spontaneous reactions have a _____________ G
A. positive B. negative C. zero
During specimen collection, an important thing to remember when handling a collection device with an oxygen-free atmosphere is to:
a. take care not to tip the container. b. hold the collected specimen in the refri-gerator until processing. c. hold the collected specimen in the incu-bator until processing. d. avoid opening the container in an aerobic atmosphere.
Most often, the largest gradient in water potential is between
A. roots and soil water. B. root xylem and shoot xylem. C. xylem and phloem. D. leaf cells and the intracellular spaces inside the leaves. E. the relative humidity inside the leaf and the relative humidity outside the plant.
Which of the following traits is NOT characteristic of the genus Ignicoccus?
a. presence of ester-linked lipids in the cell membrane b. absence of an S-layer c. presence of a periplasm d. presence of ATPase in an outer membrane