Parasitoids intentionally introduced in the Hawaiian Islands ________
a. attacked the wrong target organism in many cases
b. were supposed to attack aphids
c. were effective biological control agents
d. have helped improve tourism by increasing butterfly populations
a
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Ethylene oxide is gas that
A. is very useful for sterilizing heat or moisture-sensitive items. B. is potentially carcinogenic. C. is used as a 37% aqueous solution. D. is effective against all microorganisms except endospores and viruses. E. is very useful for sterilizing heat or moisture-sensitive items AND is potentially carcinogenic.
Chrysanthemums are short-day plants, requiring a night length of longer than 12 hours to flower
Under which of the following conditions should chrysanthemums flower? 1: Night length 14 hours, day length 10 hours 2: Night length 10 hours, day length 14 hours 3: Night length 14 hours, day length 10 hours; night interrupted in the middle by an intense red flash 4: Night length 10 hours, day length 14 hours; day interrupted in the middle by half an hour of darkness
a. only 1 b. only 2 c. both 1 and 3 d. both 2 and 4 e. 2, 3, and 4
Respiratory distress syndrome is due to
a. a lack of surfactant in the lungs. b. premature birth. c. lack of prenatal care. d. a lack of surfactant in the lungs and premature birth. e. premature birth and lack of prenatal care.
A pharmaceutical company is developing a new drug to treat a rare disease. They need to determine which of the cell's proteins can bind the drug. What tool can help them survey the proteome for drug interactions?
A. DNA microarray B. protein microarray C. SAGE D. using a monoclonal antibody E. ENCODE