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5 Written questions

5 Matching questions

  1. Efforts at urban restoration
  2. Benthic organism in the great lakes
  3. the rate at which biomass becomes available to consumers is termed
  4. Prairie dogs constantly dig though the soil, making new burrows. They est the grasses, roots and all. This probably contributes
  5. In a previous chapter you read about "keystone species." How do the prairie dogs in this story meet the
    definition of a keystone species?
  1. a ecosystem productivity
  2. b are helped by the presence of zebra mussels
  3. c Efforts at urban restoration intend to undo damage done to communities due to urban development.
  4. d E) prairie dogs were part of a negative feedback loop once they were removed
  5. e Their burrows loosened the soil and served as homes for other species; they helped with nutrient
    recycling. They helped water sink into the soil and kept soil loose for grassroots. When they were
    removed, the system collapsed.

5 Multiple choice questions

  1. system
  2. secondary consumers
  3. underground water reservoirs
  4. lightning
  5. public education, introduction of appropriate predators , examination of imported goods.

5 True/False questions

  1. The ranchers now wanted to bring back the prairie dogs because they realized that ________.A) the prairie dogs kept the soil loose, so rain sank in and grasses grew

          

  2. individuals of a single species fighting over access to a limiting resource is one example ofintraspecific competition

          

  3. Cattle on an open range ,in some areas, may compact fragile soils while grazing. This can damage plant roots, leading to fewer, smaller plants, which may in turn cause cattle to graze more and work harder to obtain food. this is an example of alightning

          

  4. the largest pools of carbon in the carbon cycle aresedimentary rocks and fossil fuels

          

  5. When the rains came down on the rocky mountainsides, the water ran down into the grasslands where the
    prairie dogs were active and ________.
    sedimentary rocks and fossil fuels

          

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