Which of the following prokaryotic nutritional
groups use CO2 and sunlight to produce energy?
a. photoautotrophs
b. chemoautotrophs
c. photoheterotrophs
d. chemoheterotrophs
e. all of these
Answer: a
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The high heat of vaporization of water helps you to feel cooler when you sweat because the transition of water from a liquid to a gas requires a ______ of energy to break hydrogen bonds. The energy is _____ from heat produced by your body, thus helping to lower the surface temperature of your body
A. release; released B. release; obtained C. input; obtained D. input; released
The incidence of deaths from communicable disease is ________ in the United States compared to the entire world.
A. about the same B. less C. greater
Which of the following misconceptions about evolution can be refuted with the molecular evidence that is being collected through DNA analysis?
A. Evolution is not observable or testable, thus it is not science. B. Evolution proposes life changed as a result of random events; traits are too complex to have originated by chance alone. C. Evolution is a theory about how life originated. D. There are no transitional fossils.
Which of the following characteristics does not apply to members of the group that includes
hedgehogs? a. teeth reduced or absent b. insectivores c. some are arboreal d. complex social interactions e. lay eggs in pouch