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Where does most of the primary production occur in an ocean ecosystem?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
Approximately how much of the planet is covered in water?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
What percentage of water of Earth is considered freshwater?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
What percentage of fish species live in freshwater ecosystems?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
Protists are the primary producers in an ocean. This would be an example of what factor?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
What is the largest ecosystem on the planet?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
Where is most of the freshwater located on Earth?
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
___________________ are freshwater ecosystems with high biodiversity that are also declining in numbers.
40%
glaciers and aquifers
three-fourths
Wetlands
3%
ocean
first 100 feet
biotic
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