Aquatic Pest Control CAT Questions & 100% Correct
Answers
The community of plants, animals, and other organisms that live and interact within a
waterbody is called _____ _____
Aquatic Ecosystem
_____ are primary producers of food for other life, produce oxygen required for survival of
fish, shelter for young fish, and provide sites for spawning
plants
_____ can absorb and break down polluting chemicals
bulrushes
an undesirable, and/or problematic plant growing where it is not wanted that interferes
with the function of the water body
weed
examples of beneficial insects:
1. snails
2. freshwater shrimp
example of a noxious insect
mosquito
Problems caused by aquatic weeds - list 10
,1. Restriction of recreational activities
2. Foul taste and odor
3. Hindering fish growth and survival
4. Water flow restriction
5. Accelerated water loss
6. Accelerated fill
7. Interfere with navigation
8. Home for noxious insects
9. Water becomes toxic
10. Loss of aesthetic appeal; increased maintenance costs
______ is the loss of water by evaporation from parts of a plant, especially leaves and stems
transpiration
What can make water toxic to animals?
algal blooms, this can happen from low oxygen and excessive phosphorus
You should not _____ ________ aquatic weeds
totally eliminate
_____ ______ & _______ _______are the exception to total elimination of aquatic weeds
retention ponds & invasive species
What are retention ponds?
used for fire control & irrigation systems designed solely for the delivery of water
, 4 factors that regulate plant growth:
1. sunlight
2. nutrients
3. temperature
4. substrate
Aquatic plants can grow in as low as _____ percent of light
1%
the portion of a body of water in which enough light can penetrate to support aquatic plant
growth:
photic zone
the bottom of the photic zone:
when light intensity is equivalent to 1% of full sunlight
______ _______ influences light penetration
water hardness
What is water hardness?
a measure of dissolved calcium and magnesium
5 ways nutrients can enter aquatic ecosystems
- precipitation
- streams
- springs
Answers
The community of plants, animals, and other organisms that live and interact within a
waterbody is called _____ _____
Aquatic Ecosystem
_____ are primary producers of food for other life, produce oxygen required for survival of
fish, shelter for young fish, and provide sites for spawning
plants
_____ can absorb and break down polluting chemicals
bulrushes
an undesirable, and/or problematic plant growing where it is not wanted that interferes
with the function of the water body
weed
examples of beneficial insects:
1. snails
2. freshwater shrimp
example of a noxious insect
mosquito
Problems caused by aquatic weeds - list 10
,1. Restriction of recreational activities
2. Foul taste and odor
3. Hindering fish growth and survival
4. Water flow restriction
5. Accelerated water loss
6. Accelerated fill
7. Interfere with navigation
8. Home for noxious insects
9. Water becomes toxic
10. Loss of aesthetic appeal; increased maintenance costs
______ is the loss of water by evaporation from parts of a plant, especially leaves and stems
transpiration
What can make water toxic to animals?
algal blooms, this can happen from low oxygen and excessive phosphorus
You should not _____ ________ aquatic weeds
totally eliminate
_____ ______ & _______ _______are the exception to total elimination of aquatic weeds
retention ponds & invasive species
What are retention ponds?
used for fire control & irrigation systems designed solely for the delivery of water
, 4 factors that regulate plant growth:
1. sunlight
2. nutrients
3. temperature
4. substrate
Aquatic plants can grow in as low as _____ percent of light
1%
the portion of a body of water in which enough light can penetrate to support aquatic plant
growth:
photic zone
the bottom of the photic zone:
when light intensity is equivalent to 1% of full sunlight
______ _______ influences light penetration
water hardness
What is water hardness?
a measure of dissolved calcium and magnesium
5 ways nutrients can enter aquatic ecosystems
- precipitation
- streams
- springs
