Water Quality Bugs
10 Questions
| Total Attempts: 376
This is a test on the macroinvertebrates that are used to measure water quality.
Questions and Answers
- 1.Which of the following macroinvertebrates is in Class I, the most pollution sensitive?
- A.
Damselfly
- B.
Stonefly
- C.
Deer/horse fly
- D.
Leech
- 2.Which type of snail is more intolerant of pollution?
- A.
Gilled snails
- B.
Air Breathing snail
- C.
Their tolerance is the same
- D.
There is no such thing as gilled snails
- 3.Which macroinvertebrate nymph is up to 2 inches long, has large eyes, a large round abdomen, six legs, and is class 2 or moderately sensitive to pollution?
- A.
Scud
- B.
Damselfly
- C.
Caddisfly
- D.
Dragonfly
- 4.Which aquatic macroinvertebrate is up to 1 inch long, has six hooked legs on the upper third of its body, is class I, and may have the lower part of its body in a case covered in sticks, rocks or leaves?
- A.
Caddisfly larva
- B.
Netspinner larva
- C.
Stonefly larva
- D.
Tubifex
- 5.Which aquatic macroinvertebrate is not an insect, has a soft, flat body with an arrow-shaped head with two eyespots?
- A.
Leech
- B.
Flatworm or planaria
- C.
Black fly larva
- D.
Scud
- 6.Which of the following aquatic macroinvertebrates is NOT is the class 3, moderately tolerant group: midge, water mite, leeches, flatworm, water penny, blackfly
- 7.What body part is the best way to tell a damselfly larva from a dragonfly larva?
- 8.This class II bug resembles its land relative, the roly-poly.
- 9.The crane fly larva, the horse fly larva, the leech and the aquatic worm are similar to each other in that they all lack prolegs as well as legs.
- A.
True
- B.
False
- 10.A pond is sampled for macroinvertebrates, and 3 blackfly larvae, 10 water striders, 12 mosquito larvae, 5 leeches, 2 backswimmers and 1 scud are found. This part of the water test indicates that the water is virtually free of pollution.
- A.
True
- B.
False
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