Chapter 21

Global Ecosystems


CHAPTER QUIZ

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Multiple Choice Questions

  1. Trees that shed their leaves seasonally are classed as
    deciduous
    evergreen
    xerophytes
    sclerophyll

  2. The largest diversity of species of any lifezone is found in the:
    needleleaf forest
    monsoon forest
    subtropical evergreen forest
    low latitude rainforest

  3. Which of the following lifezones has been most impacted by human land use?
    low latitude rainforest
    tundra
    needleleaf forest
    subtropical evergreen forest

  4. Which of the following biomes is most closely associated with a moist environment?
    forest
    grasslands
    savanna
    tundra


True/False Questions

  1. The tall grass prairie is almost entirely in its natural state.
    true
    false

  2. Fire is an important influence in the savanna biome.
    true
    false


Short Answer Questions

  1. Why is all the vegetation on earth not in its stable climax state?

  2. Why do the midlatitudes contain most of the human influenced vegetation?

  3. How do plants adapt to dry conditions?


Short Essay Questions (1 - 2 paragraphs)

  1. Describe how forests change as you move from the warmer equatorial to the colder polar regions.

  2. Describe how the change in vegetation that occurs with increasing elevation is similar to the change in vegetation that occurs with increasing latitude.


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