Practice Quiz

NAEP Science Grade 12 - Question List

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161.
Among unicellular organisms, the distinguishing feature of the protozoa is their:
  1. Movement through fluids using cilia or flagella.
  2. Consumption of other microbes for nutrients and energy.
  3. Ability to aggregate in response to chemical signals.
  4. Reproduction by binary fission rather than by spores.
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162.
In birds which of the following characteristics is most likely to be correlated with a monogamous mating relationship?
  1. Male and female sexual dimorphism.
  2. Cryptic coloration.
  3. Young that require constant feeding.
  4. Seasonal migration
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163.
Which of the following characteristics of vertebrates is a necessary consequence of being bilaterally symmetrical?
  1. A true body cavity.
  2. An endoderm layer.
  3. An interior skeleton.
  4. A right and a left side.
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164.
One reason that birds are better able than mammals to function at high altitudes is that unlike mammals, birds:
  1. Rely on negative pressure breathing rather than on positive pressure breathing.
  2. Exchange air in the lungs completely with every breath.
  3. Maintain a lower partial pressure of oxygen in the lungs than do mammals.
  4. Have oxygen-carrying proteins in addition to hemoglobin.
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165.
Panting by mammals is part of a feedback response that cools the body by:
  1. Hyperventilating the lungs.
  2. Dilating capillaries in the mouth and throat.
  3. Triggering a countercurrent heat exchange.
  4. Increasing evaporative heat loss.
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