Which of the following statements about the auxin indole-3-acetic acid (IAA) is false?
a. It is involved in polarity and tissue patterning in the embryo
b. IAA can exert different effects at different concentrations.
c. IAA is made mainly in root tips and young roots.
d. It causes cells to expand by increasing activity of proton pumps.
c
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In water, MOST taste- and odor-producing compounds are inorganic in nature
Indicate whether the statement is true or false.
Ernest Rutherford's key experiment on alpha particle bombardment of gold foil was important to the development of
A. detection methods for protons. B. alpha particle emitters. C. gold as an element. D. the modern model for atomic structure. E. the concept that atoms have a homogenous distribution of protons throughout the atom.
The anatomical structure shown in the accompanying figure is of ____
a. venous valves b. pulmonary veins c. the inferior valve d. the right myocardial sac e. the heart apex
Which city is more likely to experience the largest temperature changes throughout an average year?
A) Chicago, Illinois B) Houston, Texas C) Albuquerque, New Mexico D) Nashville, Tennessee