Question 1

Though New Zealand is relatively close to Australia,its faunal assemblages are quite different.For instance,there are no native marsupials in New Zealand.Which of the following best accounts for these differences?

Accepted Answer

A)  New Zealand experienced a major extinction that wiped out its marsupials and other Australian fauna.
B)  New Zealand was isolated from Australia during critical evolutionary times.
C)  The environments of Australia and New Zealand are completely different,despite their close proximity.
D)  New Zealand is an island,whereas Australia is a continent.As such,one wouldn't expect them to have the same faunal assemblages.
E)  New Zealand was once completely glaciated whereas Australia was not.F) A) and C)
G) B) and E)

Question 2

Succulents,such as the saguaro cactus (Carnegiea gigantea) found in southern Arizona,southeastern California,northern Mexico,and the Baja Peninsula,are representative vegetation in which biome?

Accepted Answer

A)  tropical savanna
B)  deserts
C)  Mediterranean shrubland
D)  midlatitude grassland
E)  midlatitude broadleaf and mixed forestF) A) and D)
G) C) and D)

Question 3

Discuss the main concepts of island biogeography.How has it been applied to the formation of biosphere reserves?

Accepted Answer

In the late 1960s,MacArthur and Wilson p...

Question 4

This biome consists of large expanses of xerophytic grassland and scattered trees and shrubs adapted to drought,grazing by large herbivores,and fire.

Accepted Answer

A)  tropical rain forest
B)  desert
C)  tropical savanna
D)  Mediterranean shrubland
E)  tropical seasonal forest and scrubF) B) and C)
G) A) and E)

Question 5

Large woody vines that are rooted in the soil and found in the worlds tropical forests are called

Accepted Answer

A)  understory.
B)  lianas.
C)  epiphytes.
D)  bryophytes.
E)  conifers.F) B) and D)
G) C) and E)

Question 6

This extensive biome is dominated by evergreen needleleaf forests.

Accepted Answer

A)  boreal and montane forest
B)  midlatitude broadleaf and mixed forest
C)  tropical seasonal forest and scrub
D)  temperate rain forest
E)  tropical rain forestF) B) and C)
G) A) and B)

Question 7

Of all the natural biomes,this one is most modified by human activity.

Accepted Answer

A)  midlatitude grassland
B)  tropical savanna
C)  tropical rainforest
D)  midlatitude broadleaf and mixed forest
E)  Mediterranean shrublandF) A) and E)
G) B) and C)

Question 8

What are the important factors used in defining a biogeographic realm?

Accepted Answer

The Earth's biogeographic realms are div...

Question 9

The____ includes 13 protected marine sanctuaries and two marine national monuments.

Accepted Answer

A)  U.S.National Park
B)  U.S.National Seashores
C)  U.S.National Landscape Conservation System
D)  U.S.National Recreation Areas
E)  U.S.National Marine Sanctuary SystemsF) D) and E)
G) A) and E)

Question 10

Earth's tallest trees are the

Accepted Answer

A)  coast Douglas fir (Pseudotsunga menziessii) .
B)  coast redwoods (Sequoia sempervirens) .
C)  giant ash (Eucalyptus regnans) .
D)  Sitka spruce (Picea sitchensis) .
E)  ponderosa pine (Pinus ponderosa) .F) A) and E)
G) B) and C)

Question 11

This biome occupies more than one-third of the Earth's land area and is characterized by xerophytic vegetation,low precipitation,and high potential evapotranspiration.

Accepted Answer

A)  deserts
B)  midlatitude grasslands
C)  tropical savanna
D)  Mediterranean shrubland
E)  temperate rain forestF) None of the above
G) B) and C)

Question 12

This biome is generally located north of the 10°C (50°F) isotherm for the warmest month,such as the extreme northern areas of North America and Russia.

Accepted Answer

A)  temperate rain forest
B)  Arctic and alpine tundra
C)  boreal and montane forest
D)  midlatitude broadleaf and mixed forest
E)  midlatitude grasslandF) All of the above
G) A) and B)

Question 13

According to MacArthur and Wilson's theory of island biogeography,which of the following is correct regarding the relationship between island isolation and the number of species?

Accepted Answer

A)  The number of species decreases with island isolation.
B)  The number of species increases with island isolation.
C)  No relationship is recognized between species number and island isolation.
D)  The number of species decreases with island area.
E)  Smaller islands have wider variety of habitat and niches than larger islands.F) A) and D)
G) All of the above

Question 14

Trees and shrubs that seasonally lose their leaves are called

Accepted Answer

A)  evergreens.
B)  annual herbs.
C)  deciduous.
D)  bryophytes.
E)  forbs.F) A) and D)
G) B) and C)

Question 15

In which of the following biomes would one likely find wolf,elk,moose,bear,lynx,beaver,wolverine,and a number of migratory birds?

Accepted Answer

A)  tropical rain forest
B)  tropical savanna
C)  desert
D)  boreal and montane forest
E)  temperate rain forestF) B) and C)
G) B) and E)

Question 16

Though many islands of the Indonesian archipelago are relative close to Australia,the faunal assemblages of these Indonesian islands are quite different from those on Australia.What accounts for the difference?

Accepted Answer

A)  These Indonesian islands experienced a major extinction that wiped out its marsupials and other Australian fauna.
B)  A deep ocean barrier inhibited dispersal between the two realms.
C)  The environments of Australia and Indonesia are completely different,despite their close proximity.
D)  Indonesia is an archipelago whereas Australia is a continent.As such,one would not expect them to have the same faunal assemblages.
E)  Though once connected by a land bridge during the Last Glacial Maximum,rising sea levels with the glacial retreat led to different speciation events in the two realms.F) None of the above
G) All of the above

Question 17

Distinct regions of broadly similar flora and fauna are called

Accepted Answer

A)  biozones.
B)  ecospheres.
C)  biomes.
D)  biogeographic realms.
E)  life zones.F) A) and E)
G) C) and D)

Question 18

Which of the following best describes the vegetation of the tropical seasonal forest and scrub biome?

Accepted Answer

A)  semideciduous
B)  xerophytic
C)  broadleaf evergreen
D)  sclerophyllous
E)  needleleaf deciduousF) B) and E)
G) B) and C)

Question 19

Biomes are determined based on

Accepted Answer

A)  evolutionary history and degree of isolation.
B)  dominant faunal assemblages.
C)  easily identifiable vegetation characteristics of the dominant plants.
D)  topographic and climatic variables.
E)  life zones.F) A) and B)
G) B) and E)

Question 20

Which of the following best describes an invasive species?

Accepted Answer

A)  An invasive species is any non-native introduced species,whether it becomes established or not.
B)  Non-native species become invasive when they become established in a new area,taking over niches that were already occupied by native species.
C)  Dispersal,even if anthropogenic,is a normal biogeographic process and,therefore,no cause of alarm.
D)  Approximately 90% of all introduced non-native species become invasive species.
E)  Invasive species,though non-native to a region,enrich the area in which they occur,adding to the overall biodiversity.F) A) and D)
G) B) and E)

Exam 20: Terrestrial Biomes

This biome occupies more than one-third of the Earth's land area and is characterized by xerophytic vegetation,low precipitation,and high potential evapotranspiration.

Correct AnswerverifiedShow Answer

Large woody vines that are rooted in the soil and found in the worlds tropical forests are called

Correct AnswerverifiedShow Answer

Discuss the main concepts of island biogeography.How has it been applied to the formation of biosphere reserves?

Correct AnswerverifiedIn the late 1960s,MacArthur and Wilson p...View AnswerShow Answer

According to MacArthur and Wilson's theory of island biogeography,which of the following is correct regarding the relationship between island isolation and the number of species?

Correct AnswerverifiedShow Answer

Biomes are determined based on

Correct AnswerverifiedShow Answer

What are the important factors used in defining a biogeographic realm?

Correct AnswerverifiedThe Earth's biogeographic realms are div...View AnswerShow Answer

Though New Zealand is relatively close to Australia,its faunal assemblages are quite different.For instance,there are no native marsupials in New Zealand.Which of the following best accounts for these differences?

Correct AnswerverifiedShow Answer

This biome consists of large expanses of xerophytic grassland and scattered trees and shrubs adapted to drought,grazing by large herbivores,and fire.

Correct AnswerverifiedShow Answer

This biome is generally located north of the 10°C (50°F) isotherm for the warmest month,such as the extreme northern areas of North America and Russia.

Correct AnswerverifiedShow Answer

This extensive biome is dominated by evergreen needleleaf forests.

Correct AnswerverifiedShow Answer

Which of the following best describes an invasive species?

Correct AnswerverifiedShow Answer

Succulents,such as the saguaro cactus (Carnegiea gigantea) found in southern Arizona,southeastern California,northern Mexico,and the Baja Peninsula,are representative vegetation in which biome?

Correct AnswerverifiedShow Answer

Earth's tallest trees are the

Correct AnswerverifiedShow Answer

The____ includes 13 protected marine sanctuaries and two marine national monuments.

Correct AnswerverifiedShow Answer

Though many islands of the Indonesian archipelago are relative close to Australia,the faunal assemblages of these Indonesian islands are quite different from those on Australia.What accounts for the difference?

Correct AnswerverifiedShow Answer

Of all the natural biomes,this one is most modified by human activity.

Correct AnswerverifiedShow Answer

Which of the following best describes the vegetation of the tropical seasonal forest and scrub biome?

Correct AnswerverifiedShow Answer

Distinct regions of broadly similar flora and fauna are called

Correct AnswerverifiedShow Answer

Trees and shrubs that seasonally lose their leaves are called

Correct AnswerverifiedShow Answer

In which of the following biomes would one likely find wolf,elk,moose,bear,lynx,beaver,wolverine,and a number of migratory birds?

Correct AnswerverifiedShow Answer

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In the late 1960s,MacArthur and Wilson p...
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The Earth's biogeographic realms are div...
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