Indicator Species: Definition & Examples

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question 1 of 3

A high number of stonefly larvae indicates what?

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1. When the relative abundance of an organism is used to determine the overall health of an environment, that organism is referred to as a(n):

2. If a water supply has plentiful Tubifex tubifex worms, what might you deduce?

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About This Quiz & Worksheet

Questions on this quiz and worksheet test your understanding of different facts related to indicator species. You have to know about the characteristics of different organisms and what their presence can show.

Quiz & Worksheet Goals

Information assessed includes:

  • What is indicated by a high number of lichen
  • Species affected by the declining Spotted Owl
  • What is indicated by a high number of stonefly larvae

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the lesson on indicator species
  • Knowledge application - use your knowledge to identify how an organism is referred to if its relative abundance is used to determine an environment's overall health
  • Information recall - access the knowledge you've gained regarding what plentiful Tubifex tubifex worms in a water supply indicates

Additional Learning

Learn more about organisms by completing the lesson titled Indicator Species: Definition & Examples. Objectives covered in the lesson include:

  • Review lichens and the species that make them up
  • Know what a stonefly larvae looks like
  • Describe what scientists are able to determine from specific indicator species
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