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Tropical rain forest destruction threatens the global water cycle and carbon cycle.

A) True
B) False

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The deepest region of lake water where light does not penetrate is the:


A) Littoral zone
B) Limnetic zone
C) Profundal zone
D) Pelagic zone
E) Benthic zone

F) A) and E)
G) A) and B)

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Which of the following is not characteristic of a tropical rain forest?


A) Warm climate
B) Nutrient rich soil
C) A year-round growing season for plants
D) A tremendous diversity of animal life
E) They are positioned near the equator

F) A) and B)
G) A) and C)

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Along coastlines,the area between high tide and low tide is the:


A) Benthic zone
B) Littoral zone
C) Intertidal zone
D) Neritic zone
E) Pelagic zone

F) B) and D)
G) A) and C)

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C

The sediment at the lake bottom is the:


A) Littoral zone
B) Limnetic zone
C) Profundal zone
D) Benthic zone
E) Pelagic zone

F) B) and E)
G) B) and D)

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figure 38.24 figure 38.24   -What conclusion was drawn from figure 38.24 a and b? A) That photosynthesis decreased in all strains of algae at higher temperatures B) That corals switch from type C to type D symbiotic algae after an El Nino C) That corals bleach and die after an El Nino D) That photosynthesis in strain D of algae was not decreased at higher temperatures E) That El Nino events do not affect corals -What conclusion was drawn from figure 38.24 a and b?


A) That photosynthesis decreased in all strains of algae at higher temperatures
B) That corals switch from type C to type D symbiotic algae after an El Nino
C) That corals bleach and die after an El Nino
D) That photosynthesis in strain D of algae was not decreased at higher temperatures
E) That El Nino events do not affect corals

F) A) and B)
G) B) and C)

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How did the scientists use El Nino events to test their hypothesis?


A) In an El Nino event sea temperatures are temporarily warmer than normal, promoting bleaching
B) In an El Nino event sea temperatures are temporarily cooler than normal, promoting bleaching
C) In an El Nino event sea temperatures are temporarily warmer than normal, preventing bleaching
D) In an El Nino event sea temperatures are temporarily cooler than normal, preventing bleaching

E) A) and D)
F) B) and C)

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Trees that usually lose only a few leaves at a time are:


A) Deciduous trees
B) Carnivorous trees
C) Maple trees
D) Hickory trees
E) Coniferous trees

F) A) and B)
G) C) and D)

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Desert plants often have:


A) Broad leaves
B) Thick vines
C) Long taproots
D) Shallow roots
E) Soft bark

F) None of the above
G) B) and E)

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Which of the following is not considered a coniferous tree?


A) Spruce
B) Pine
C) Maple
D) Fir
E) Hemlock

F) A) and B)
G) C) and E)

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A coral reef is a complex ______ of calcium carbonate shells that are home to microbes,algae,invertebrates,and fishes.


A) Ecosystem
B) Community
C) Biome
D) Population
E) Niche

F) None of the above
G) B) and E)

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A

Desertification can occur from over grazing and over use of ground water.An example was the dust bowl during the 1930s in parts of the Great Plains of the United States.Which of the following could best explain this observation?


A) Deserts only form when rainfall levels drop for hundreds of years
B) Desert plants don't need water to survive
C) Desert plants cannot be eaten by herbivores
D) When grassland plants become dry herbivores will no longer eat them
E) Grassland plants cannot survive if water levels drop

F) C) and D)
G) C) and E)

Correct Answer

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As you climb the mountain,why are the biomes changing?


A) The air is thinner
B) The latitude is changing
C) More rain falls in a rain shadow
D) Some animals live better at higher elevations
E) It is colder

F) A) and E)
G) A) and C)

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As temperatures in the Arctic warm,which of the following changes may occur?


A) Tundra will be replaced by taiga
B) Taiga will be replaced by tundra
C) Temperate forest will be replaced by taiga
D) Tundra will be replaced by desert
E) Taiga will be replaced by temperate rain forest

F) A) and B)
G) B) and C)

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The BWCA is an example of which biome?


A) Boreal forest
B) Tropical rainforest
C) Short grass prairie
D) Tundra
E) Temperate rainforest

F) A) and E)
G) A) and D)

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The tilt of the Earth's axis produces distinct seasons in the northern and southern hemispheres as Earth travels around the Sun.

A) True
B) False

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All deserts are characterized by being hot and dry.

A) True
B) False

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Which of the following is not a characteristic or component of a hydrothermal vent ecosystem?


A) Archaea
B) Tube worms
C) Sunlight
D) Very low pH
E) Temperatures of 100 degrees Celsius

F) B) and D)
G) A) and B)

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Which of the following is not a major terrestrial biome of Earth?


A) The temperate grasslands
B) The tundra
C) The taiga
D) The Antarctic
E) The tropical forest

F) B) and C)
G) C) and D)

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D

Nutrient-rich lakes are termed oligotrophic.

A) True
B) False

Correct Answer

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