Rhinoceroses are being poached at a rate of two or three a week in Africa and Asia. Which type of diversity is being lost as the population of rhinoceroses becomes very small?
  • endangered
  • genetic diversity
  • to create the soil
  • secondary succession
The number of rhinoceroses has decreased to near extinction. How are rhinoceroses classified under the Endangered Species Act?
  • endangered
  • clear cutting
  • secondary succession
  • genetic diversity
In one species of bird, there are three varieties of feather color. What is this an example of?
  • to create the soil
  • genetic diversity
  • endangered
  • volcanic eruption
Which disturbance would result in primary succession?
  • the formation of Surtsey, a volcanic island off of the southern coast of Iceland
  • It always occurs in a predictable pattern.
  • clear cutting
  • to create the soil
What is the role of a pioneer species in primary succession?
  • secondary succession
  • clear cutting
  • to create the soil
  • volcanic eruption
Which factor can cause secondary succession?
  • clear cutting
  • the formation of Surtsey, a volcanic island off of the southern coast of Iceland
  • to create the soil
  • volcanic eruption
On May 18, 1980, Mount St. Helens in Washington State experienced a huge volcanic eruption after a magnitude 5.1 earthquake. During the eruption, hot ash and pumice poured down the west, south, and east sides of the mountain, melting the snow and ice at the top of the volcano and creating volcanic mudflows. Which type of change was seen in the ecosystem around Mount St. Helens after it erupted?
  • to create the soil
  • primary succession
  • secondary succession
  • genetic diversity
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