Which of the following is true of chiral drugs that are administered as single enantiomers?
A) They all have the R configuration.
B) They all have the S configuration.
C) Their enantiomers are always highly toxic.
D) None of the above is correct.
D
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A) Mexico B) Canada C) India D) China E) Iran
What kind of temperature and pressure conditions will exist in a subduction zone metamorphic environment?
A) Low temperature and low pressure B) Low temperature and high pressure C) High temperature and low pressure D) High temperature and high pressure
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a. low latitude desert b. humid continental, hot summer c. tropical savanna d. Mediterranean
________ metamorphism tends to occur in regions where massive amounts of sedimentary or volcanic materials accumulate in a subsiding basin, pushing older rocks further into the interior
A) Contact B) Hydrothermal C) Burial D) Regional