The technique that can be used to record ion currents passing through individual channels is known as
A) voltage-gating.
B) ligand-gating.
C) patch-clamping.
D) ion sensors.
E) optogenetics.
Answer: C
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The elongation of stems is stimulated by
A. auxin only. B. gibberellin only. C. ethylene only. D. auxin and gibberellin. E. auxin and ethylene.
Two-thirds of the available freshwater is
a. used as drinking water for animals. b. used as drinking water for humans. c. used for irrigation. d. wasted.
All of the following are characteristics of life EXCEPT
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