Photosynthetic organisms derive their carbon from
A) carbon monoxide.
B) carbon dioxide.
C) hydrocarbons.
D) methane.
Answer: B
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Controversy surrounds the use of zinc-containing nasal sprays as a cold remedy, since they have been associated with anosmia (loss of smell). If true, this is likely due to the sprays damaging which tissue?
A. Neuroglial system B. Central nervous system C. Peripheral nervous system D. Osmic nerve
With which of the following would hemizygosity most likely be associated?
A) incomplete dominance B) X-linked inheritance C) sex-limited inheritance D) autosomal dominance E) codominance
Which of the following is a likely side effect of gestational diabetes?
A) impotence B) preeclampsia C) low blood pressure D) low birth weight
What was a surprising feature about the deadly nature of the 2009 H1N1 influenza virus?
A) H1N1 affected the elderly. B) H1N1 affected healthy young people. C) H1N1 affected birds. D) H1N1 affected pigs.