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5 Written Questions

5 Matching Questions

  1. Release of organic chemicals into surface waters is good for the organisms that live in the waters, since the wastes add to the nutrients present for the food chains in the water.
    True False
  2. When the factors causing habitat decline are identified and a procedure is developed to remedy this, it is
    A. the edge effect.
    B. a habitat restoration plan.
    C. a population viability analysis.
    D. a gap analysis.
    E. landscape dynamics.
  3. Introduction of alien or exotic species into new ecosystems occurs by
    A. colonization when new settlers arrive in an area.
    B. accidental transport by ship or plane without anyone's knowledge.
    C. agricultural and horticultural activities.
    D. All of the choices are correct.
    E. B and C only are correct.
  4. The effect of global warming on coral reefs is
    A. negligible, since they will be protected underwater.
    B. minor since all marine environments are moderated by the great ability of water to hold temperatures constant.
    C. negative, since a rise of a few degrees will cause them to bleach and become lifeless.
    D. positive, since the higher temperatures will increase photosynthesis in the mutualistic algae.
    E. positive, since the greater sunlight to penetrate the sea will increase photosynthesis in the mutualistic algae.
  5. _______ is (are) associated with 85% of the cases of threatened and endangered species.
    A. Pollution
    B. Habitat loss
    C. Overexploitation
    D. Disease
    E. Exotic species
  1. a C. negative, since a rise of a few degrees will cause them to bleach and become lifeless.
  2. b B. a habitat restoration plan.
  3. c False
  4. d B. Habitat loss
  5. e D. All of the choices are correct.

5 Multiple Choice Questions

  1. B. Keystone species are defined as a population subdivided into several small isolated populations due to habitat fragmentation.
  2. C. a natural phenomenon due to absorption of sunlight and re-radiating of the heat.
  3. D. A, B, and C are correct.
  4. E. C and D are incorrect.
  5. C. acid rain or snow.

5 True/False Questions

  1. Which of the following organisms is NOT an example of an alien or exotic species?
    A. zebra mussels introduced to the Great Lakes
    B. dandelions planted by pioneers as salad greens
    C. the mongoose brought to Hawaii to control rats
    D. water hyacinths
    E. All of these are examples of introduced alien species.
    D. A, B, and C only are correct.

          

  2. Sustainable development is a pattern of resource use that attempts to preserve the environment while meeting the needs of humans in the present and future.
    True False
    A. The edge effect

          

  3. Madagascar is considered a biodiversity "hotspot" because
    A. it originated as a volcanic island.
    B. it has lost nearly all of its native species to extinction.
    C. it contains an unusually high concentration of species.
    D. it has resisted habitat destruction that has caused extinctions elsewhere.
    E. All of the choices are correct.
    C. it contains an unusually high concentration of species.

          

  4. The use of wheat, corn, rice and other crops derived from wild ancestors is an example of the _______ value of biodiversity.
    A. agricultural
    B. medicinal
    C. consumptive use
    D. climatic regulation
    A. agricultural

          

  5. Rosy periwinkle, the nine-banded armadillo, and some species of fungus and bacteria have _________ value to man.
    A. agricultural
    B. medicinal
    C. consumptive use
    D. indirect
    E. no
    True

          

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