The portion of the ear that allows for balance control
is indicated by
a. A.
b. B.
c. C.
d. E.
e. nothing labeled on this figure.
Answer: e
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If flagellar rotation of Escherichia coli cells is ________, then CheA is ________.
A. clockwise; unphosphorylated B. clockwise; autophosphorylated C. counterclockwise; unphosphorylated D. counterclockwise; autophosphorylated
Animals that have the four basic characteristics of chordates plus a vertebral column are
a. invertebrates. b. hemichordates. c. cephalochordates. d. vertebrates.
You have lost a lot of blood in an accident. In the emergency room the first thing the doctors will need to do is replace lost fluids. The fluids they give you should be:
A) hypertonic to your cells. B) hypotonic to your cells. C) isotonic to your cells. D) either hypertonic or hypotonic to your cells. E) either hypertonic or isotonic to your cells.
Select the statement that most accurately reflects characteristics of fluoroquinolone drugs.
A. They exhibit low potency and must be used in very high concentrations to affect pathogens. B. Levofloxacin is a third-generation fluoroquinolone used in cases of resistant bacterial infections. C. They are narrow-spectrum antibiotics. D. Nalidixic acid is a first-generation quinolone still commonly used in patients today.