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Exam 20: Terrestrial Biomes

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Question 61

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Which of the following best describes biomes?

A) Biomes are defined by species that invade a region.
B) Most biomes have been relatively unaffected by human intervention.
C) The boundaries between most biomes are sharp and easily delineated.
D) Biomes often reflect potential mature vegetation,rather than actual vegetation of an area.

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

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Question 62

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Which are Earth's tallest trees?

A) Coast douglas fir (Pseudotsunga menziessii) .
B) Coast redwoods (Sequoia sempervirens) .
C) Giant ash (Eucalyptus regnans) .
D) Sitka spruce (Picea sitchensis) .

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

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Question 63

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Deserts,by definition,contain very little vegetation and are represented instead by large areas of windswept sand (ergs).

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

The biome concept has been applied equally to marine and aquatic systems as it has to terrestrial systems.

In part,the high diversity of the tropical rain forest is due to the extremely fertile soils found in the biome.

"Wallace's line," which serves as a dividing line between different biogeographic realms and separates several present-day Indonesian islands from one another,is so named to show the arbitrary nature of such delineations.

Of all the natural biomes,which one is most modified by human activity?

Describe the concept of an anthropogenic biome.In which anthropogenic biome do you live?

Most non-native species introduced to a new community become established.

Which is the most extensive anthropogenic biome?

In general,the tropical seasonal forest and scrub biome has more erratic rainfall than the tropical rain forest biome.

Due to the dense tropical rain forest canopy,only about 1% of the sunlight arriving at the canopy reaches the forest floor.

Anthropogenic biomes,while not replacing the concept of terrestrial biomes classification,provide insight into the role humans have played in shaping the world's ecosystems.

Trumpet trees (Tabebuia caraiba) ,a dry-season deciduous tree would likely be found in which of the following biomes?

Which of the following would one likely find in the Arctic and alpine tundra biome?

Which of the following best describes the climate characteristics of the tropical seasonal forest and scrub?

Earth's warm deserts develop primarily in response to which of the following?