Which of the following explains why succinylcholine is used as a muscle relaxant?
A) It destroys acetylcholine esterase.
B) It is not hydrolyzed by acetylcholinesterase.
C) It is rapidly hydrolyzed by acetylcholinesterase.
D) It is slowly hydrolyzed by acetylcholinesterase.
D
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Which is the following helps to control cultural eutrophication?
A. adding nitrates to balance the excess phosphate B. adding aquatic weeds to the water body to absorb excess oxygen C. increasing fertilizer use D. pumping remaining oxygen out of the reservoir E. limiting or banning phosphates in detergents
Heat is thermal energy that flows from
A. high energy to low energy. B. hot to cold. C. high thermal pressure to low thermal pressure. D. all of the above
Explain how a superimposed stream cutting through a mountain range forms
Identify all of the different observations used to support Harry Hess's theory of seafloor spreading.
A. Shallow earthquakes along transform faults B. High heat flow at oceanic ridges C. Dipping zones of earthquakes at ocean trenches D. Geographic fit of the continents E. Matching bodies of rock on either side of the Atlantic F. Studies of fossil plants and animals G. Seafloor magnetic anomalies H. Alignment of mountain ranges when the Atlantic is closed I. Patterns of glaciation