Practice Quiz

HiSET Science Test Prep - Question List

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41. Which is true of ecological succession?
  1. Pioneer species move into the new communities first
  2. Climax communities have higher total biomass than preceding communities
  3. Species diversity increases with each stage of succession
  4. Climax communities do not change
  5. All of the above
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42. ____CH3OH(I) + _____O2(g) --> _____CO2(g) + _____H2O(g)

What set of coefficients correctly balances this equation?
  1. 2, 3, 2, 1
  2. 1, 2, 2, 1
  3. 2, 3, 4, 2
  4. 2, 3, 3, 4
  5. 2, 3, 2, 4
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43. A population of bison was separated by the construction of a new interstate. The construction also separates bison east of the interstate from its natural predator, and bison west of the river from the primary source of water. Much time passes.

The horns of bison east of the interstate become less sharp than those west of the interstate. This is an example of:
  1. Speciation
  2. Divergent evolution
  3. Convergent evolution
  4. Succession
  5. Parasitism
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44. All of the following are products of the nitrogen cycle EXCEPT:
  1. N2
  2. NO3
  3. NO2
  4. NH3
  5. O2
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45. What term classifies a phase change from a solid directly to a gas?
  1. Vaporization
  2. Deposition
  3. Effervesence
  4. Fusion
  5. Sublimation
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