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Pre Test Quiz
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1
What is a biome?
A)the zone of air, land, and water at the Earth’s surface where living organisms are found
B)units of interacting biotic and abiotic components of the environment
C)the portions of the planet Earth composed of water
D)any one of the major terrestrial ecosystems
2
This ecosystem has no trees, is cold and dark much of the year, and is home to the musk ox.
A)the Arctic tundra
B)a savanna
C)a temperate deciduous forest
D)a temperate grassland
3
Gymnosperms, such as pine trees, are the dominant organisms of which forest biome?
A)Gymnosperms are the dominant trees in all of these forest biomes.
B)tropical rain forests
C)temperate deciduous forests
D)coniferous forests
4
A nutrient-poor lake has __________ productivity and is called a(n) __________ lake. A nutrient-rich lake has __________ productivity and is called a(n) __________ lake.
A)high; oligotrophic; low; eutrophic
B)low; oligotrophic; high; eutrophic
C)high; eutrophic; low; oligotrophic
D)low; eutrophic; high; oligotrophic
5
Which division of the ocean is home to the greatest concentration of organisms?
A)the pelagic zone
B)the intertidal zone
C)the euphotic zone
D)the abyssal plain





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