Practice Quiz

HOBET Review Questions - Question List

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96. What is the function of the myelin sheath that surrounds neurons?
  1. Increase speed of impulses
  2. Maintain polarization
  3. Decrease friction
  4. Control growth of neurons
  5. Oxygen exchange
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97. Giraffes with longer necks can reach more food and are more likely to survive and produce offspring. This is an example of:
  1. Natural selection
  2. Divergent evolution
  3. Coevolution
  4. Speciation
  5. Convergent evolution
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98. As the dominant plant of the area changes, the total biomass of the community __________.
  1. Increases
  2. Decreases
  3. Remains the same
  4. Decreases then increases
  5. Increases then decreases
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99. Which of the following can function as an inorganic coenzyme?

I. Iron
II. Magnesium
III. Zinc
  1. I only
  2. II only
  3. III only
  4. I and II only
  5. I, II, and III only
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100. Solve: 5²
  1. 625
  2. 10
  3. 25
  4. 125
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