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- 1. Multiple Choice
Can you identify the macro pictured and determine its pollution tolerance?
Midge larvae, medium pollution tolerance
Blackfly larvae, high pollution tolerance
Midge larvae, high pollution tolerance
Blackfly larvae, medium pollution tolerance
- 2. Multiple Choice
Which organism pictured below has a low pollution tolerance?
- 3. Multiple Choice
What is a factor that might influence the number and types of macros you can find? (select all that apply)
Amount of rain
Temperature
Sunlight
Amount of rocks
- 4. Multiple Choice
Can you identify the macro-invertebrate?
Aquatic worm
Flatworm
Leech
Cranefly larvae
- 5. Multiple Choice
Can you define, macro-invertebrate?
Animal with a backbone, need the aid of a microscope to see
Animal without a backbone, need the aid of a microscope to see
Animal without a backbone, large enough to see without a microscope
Animal with a backbone, large enough to see without a microscope
- 6. Multiple Choice
What does the word 'benthic' mean?
Organisms that live predominantly on land
Swimming organisms
Flying organisms
Bottom dwelling organisms
- 7. Multiple Choice
Can you identify macro-invertebrate?
Sowbug
Riffle Beetle
Scud
Water boatman
- 8. Multiple Choice
True or False, macro-invertebrates are considered biotic factors
True
False
- 9. Multiple Choice
Why is studying macro-invertebrates so important in determining the health of a water way? (select all that apply)
They can show the cumulative affects of pollution
They are a critical part of the food web
They are affected by physical, chemical, and biological conditions of the water way
They can show the effects of both short and long term pollution
- 10. Multiple Choice
Can you identify the macro-invertebrate?
Stonefly larvae
Mayfly larvae
Alderfly larvae
Dobsonfly larvae
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