Question 1

Terrestrial biotic communities as they occur on a continental or global scale are referred to as __________.

Accepted Answer

A)   environments
B)   communes
C)   ecoregions
D)   biomes
E)   species groupsF) C) and E)
G) All of the above

Question 2

A low-growing, understory vegetation dominates in the early spring and again in the fall because of the available light resulting from leaf drop.This is a characteristic of the:

Accepted Answer

A)   tropical rain forest.
B)   temperate deciduous forest.
C)   grasslands.
D)   savannas.
E)   tundra.F) A) and D)
G) A) and C)

Question 3

Vegetation of the tundra is dominated by _____________________.

Accepted Answer

A)   gymnosperms such as spruce, fir and pine
B)   short shrubs, grasses and herbaceous perennial wildflowers
C)   xerophytes adapted to areas with low precipitation
D)   broad-leaved deciduous trees
E)   aquatic plantsF) A) and D)
G) A) and C)

Question 4

For a given biome, the vegetational species are exactly the same regardless of the geographical location.For example the species found in a desert in the United States is exactly the same as species found in the deserts of Africa.

Accepted Answer

A) True 
 B)False

Question 5

Due to permafrost in tundra areas soils are wet and marshy even though the region received limited precipitation.

Accepted Answer

A) True 
 B)False

Question 6

Naturally occurring grasslands are usually found toward the interiors of continental masses.They tend to intergrade with ____________ in areas where annual precipitation drops below 25 cm (10 inches) annually.

Accepted Answer

A)   broad-leaved deciduous forests
B)   northern boreal forests
C)   deserts
D)   coastal habitats
E)   alpine tundraF) B) and D)
G) A) and E) C

Question 7

Swamps, bogs, marshes, and moors are all types of:

Accepted Answer

A)   hydrosystems.
B)   ecosystems.
C)   wetlands.
D)   eutrophic lakes.
E)   both [hydrosystems and eutrophic lakes] are correct.F) C) and D)
G) C) and E)

Question 8

Climax vegetation always consists of some type of trees.

Accepted Answer

A) True 
 B)False

Question 9

Eastern North America, south of the northern boreal forest, is dominated by temperate deciduous forests.Within this biome, gradations of annual low and high temperatures and precipitation result in species assemblages such as __________________.

Accepted Answer

A)   maple-basswood and oak-hickory forest
B)   big bluestem and other grasses
C)   spruce, fir and pine
D)   cactus and chaparral vegetation
E)   broad-leaved evergreen angiospermsF) A) and C)
G) A) and B)

Question 10

Bromeliads and orchids are examples of:

Accepted Answer

A)   lianas.
B)   parasitic flowering plants.
C)   shrubs.
D)   epiphytes.
E)   hydrophytesF) D) and E)
G) C) and E)

Question 11

Another name for the northern coniferous or boreal forest is the ___________.

Accepted Answer

A)   tundra
B)   taiga
C)   evergreen forest
D)   polar forest
E)   mountain forestF) B) and E)
G) C) and E)

Question 12

Which of the following biomes is characterized by the predominance of broad-leaved trees that are adapted to subfreezing temperatures as long as the cold is accompanied by precipitation or snow cover?

Accepted Answer

A)   mountain forest
B)   taiga
C)   tundra
D)   grasslands
E)   temperate deciduous forestF) C) and D)
G) B) and C)

Question 13

Desert animals tend to forage at night.

Accepted Answer

A) True 
 B)False

Question 14

Hardwood trees such as oak, maple, walnut, and cherry are vegetational types of:

Accepted Answer

A)   tropical rain forests.
B)   temperate deciduous forests.
C)   coniferous forests.
D)   taiga.
E)   tundra.F) C) and E)
G) A) and C)

Question 15

The most fragile of the biomes is the

Accepted Answer

A)   tundra.
B)   taiga.
C)   temperate deciduous forest.
D)   grassland.
E)   mountain forest.F) B) and C)
G) A) and D)

Question 16

______________ forests are found along the Pacific Coast and along the Rocky Mountain and California mountain ranges.

Accepted Answer

A)   Coastal and mountain
B)   Tropical rain forest
C)   Eastern deciduous forest
D)   Taiga
E)   GrasslandF) A) and E)
G) All of the above

Question 17

Despite receiving up to several feet of snow each winter, conifers in the northern boreal forest are adapted to ___________________.

Accepted Answer

A)   hot dry conditions
B)   moist soils
C)   reduced water availability
D)   long, mild growing seasons
E)   temperate conditions of moisture and seasonalityF) B) and C)
G) C) and D) C

Question 18

Savannas are primarily grasslands with:

Accepted Answer

A)   scattered deciduous trees.
B)   scattered evergreen trees.
C)   alternating hot and cold seasons.
D)   no tree species.
E)   numerous tree species.F) A) and C)
G) B) and E)

Question 19

Thick waxy cuticle layers and dense hairs on leaves are morphological adaptations to:

Accepted Answer

A)   heavy rainfall and humid environments.
B)   dry environments.
C)   temperate environments.
D)   fresh water environments.
E)   wet environments.F) A) and C)
G) All of the above B

Question 20

When high winds tear away matted vegetation of tundra, the resulting barren patch is called a ______________.

Accepted Answer

A)   sink
B)   permafrost oasis
C)   blowout
D)   arctic scar
E)   vernal poolF) B) and E)
G) A) and E)

Exam 26: Biomes

Terrestrial biotic communities as they occur on a continental or global scale are referred to as __________.

Correct AnswerverifiedShow Answer

A low-growing, understory vegetation dominates in the early spring and again in the fall because of the available light resulting from leaf drop.This is a characteristic of the:

Correct AnswerverifiedShow Answer

Vegetation of the tundra is dominated by _____________________.

Correct AnswerverifiedShow Answer

For a given biome, the vegetational species are exactly the same regardless of the geographical location.For example the species found in a desert in the United States is exactly the same as species found in the deserts of Africa.

Correct AnswerverifiedShow Answer

Due to permafrost in tundra areas soils are wet and marshy even though the region received limited precipitation.

Correct AnswerverifiedShow Answer

Naturally occurring grasslands are usually found toward the interiors of continental masses.They tend to intergrade with ____________ in areas where annual precipitation drops below 25 cm (10 inches) annually.

Correct AnswerverifiedC

Swamps, bogs, marshes, and moors are all types of:

Correct AnswerverifiedShow Answer

Climax vegetation always consists of some type of trees.

Correct AnswerverifiedShow Answer

Eastern North America, south of the northern boreal forest, is dominated by temperate deciduous forests.Within this biome, gradations of annual low and high temperatures and precipitation result in species assemblages such as __________________.

Correct AnswerverifiedShow Answer

Bromeliads and orchids are examples of:

Correct AnswerverifiedShow Answer

Another name for the northern coniferous or boreal forest is the ___________.

Correct AnswerverifiedShow Answer

Which of the following biomes is characterized by the predominance of broad-leaved trees that are adapted to subfreezing temperatures as long as the cold is accompanied by precipitation or snow cover?

Correct AnswerverifiedShow Answer

Desert animals tend to forage at night.

Correct AnswerverifiedShow Answer

Hardwood trees such as oak, maple, walnut, and cherry are vegetational types of:

Correct AnswerverifiedShow Answer

The most fragile of the biomes is the

Correct AnswerverifiedShow Answer

______________ forests are found along the Pacific Coast and along the Rocky Mountain and California mountain ranges.

Correct AnswerverifiedShow Answer

Despite receiving up to several feet of snow each winter, conifers in the northern boreal forest are adapted to ___________________.

Correct AnswerverifiedC

Savannas are primarily grasslands with:

Correct AnswerverifiedShow Answer

Thick waxy cuticle layers and dense hairs on leaves are morphological adaptations to:

Correct AnswerverifiedB

When high winds tear away matted vegetation of tundra, the resulting barren patch is called a ______________.

Correct AnswerverifiedShow Answer

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C

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C

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B

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