What does the bacterial genome consist of?
A) Many rod-like DNA molecules with protein
B) Several circular DNA molecules
C) DNA in mitochondria
D) One circular RNA molecule
E) One circular DNA molecule
E
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The most common adjuvant is
A. ethanol. B. formalin. C. alum. D. aluminum. E. alum AND aluminum.
Water ecosystems become eutrophic when there is ________.
A. nutrient enrichment of waters B. acidification of waters C. nutrient removal from waters D. deoxygenation of waters
In models of logistic population growth, _____
A) the population growth rate slows dramatically as N approaches K B) new individuals are added to the population most rapidly at the beginning of the population's growth C) new individuals are added to the population as N approaches K D) only density-dependent factors affect the rate of population growth E) carrying capacity is never reached
How do defibrillators work?
a. they pump adrenalin into heart tissue. b. they deliver an electric shock to the heart’s pacemaker. c. they automate CPR. d. they massage the heart using remote sensors. e. they do a combination of more than one of these