Which statement makes a correct comparison between the regulation of an operon and controlling the
motion of a car?
a. The removal of a repressor is like stepping on the gas pedal of a car.
b. The removal of a repressor is like removing your foot from the brake pedal of a car.
c. The removal of a repressor is like moving your foot from the brake pedal to the gas pedal
of a car.
d. The removal of a repressor is like moving your foot from the gas pedal to the brake pedal
of a car.
e. The removal of a repressor is like removing your left foot from the brake pedal of a car
while your right foot remains on the gas pedal.
B
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The natural philosophy of Aristotle and his colleagues was
(a) mechanistic. (b) vitalistic. (c) a belief in absolute truth. (d) a and c.
The most numerous WBCs that have multilobed nuclei and are very phagocytic are ________.
A. monocytes B. basophils C. eosinophils D. lymphocytes E. neutrophils
A fossil is defined as any evidence of an organism from
A. at least 500 years ago. B. at least 1000 years ago. C. at least 25,000 years ago. D. at least 10,000 years ago. E. at least 100,000 years ago.
Which of these is a possible function of trichomes? Select all that apply.A) Reflect light from leaf surfacesB) Store or secrete saltC) Structural supportD) Irritate potential herbivoresE) Defend against insects
What will be an ideal response?