Interpreting

Review Questions for "Interpreting Invertebrate Data"

Try answering the following review questions. If you have trouble, all the answers can be found by re-reading the previous section.

  1. Describe four types of pollution.

  2. What type of pollution reduces the population of all types of invertebrates?

  3. Why are invertebrates used as "bio-indicators" of pollution?

  4. List an indicator organism found in each category of water quality.

  5. Why aren't adult beetles, water striders and lunged snails useful indicators of water quality?

  6. Describe one way that the seasons affect invertebrate populations.

  7. If invertebrate populations change, how can you tell if the change was natural or caused by human impact?

Are you ready for the Invertebrate Data Quiz?

Copyright © 2010, The RiverWatch Institute of Alberta. All rights reserved.