Chapter A12. I viventi nel loro ambiente #108792

Terrestrial Ecosystems

Which of the following statements about the Arctic tundra is false?

A:

Soil below the uppermost layer stays frozen year-round.

B:

Annual rainfall is low.

C:

Trees cannot grow because the growing season is too short.

D:

Large mammals are absent.

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Terrestrial Ecosystems

Which biome is characterized by a coniferous forest with low average temperature and moderate rainfall?

A:

taiga

B:

savannah

C:

tundra

D:

temperate forest

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Terrestrial Ecosystems

The major environmental factor that determines whether a prairie has tall grass or short grass is

A:

annual rainfall.

B:

mean annual temperature.

C:

soil nutrient levels.

D:

types of grazers present.

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Terrestrial Ecosystems

All of these phrases describe the tundra except

A:

low-lying vegetation.

B:

northernmost biome.

C:

short growing season.

D:

many different types of species.

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Terrestrial Ecosystems

Epiphytes are most likely to be found in

A:

deserts.

B:

grasslands.

C:

tropical rain forests.

D:

shrublands.

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Climate and the Biosphere

Whether ascending a mountain or traveling from the equator to the North Pole, you would observe terrestrial biomes in which order?

A:

coniferous forest, tropical rain forest, temperate deciduous forest, tundra

B:

tropical rain forest, coniferous forest, temperate deciduous forest, tundra

C:

tropical rain forest, temperate deciduous forest, coniferous forest, tundra

D:

tundra, temperate deciduous forest, tropical rain forest, coniferous forest

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Terrestrial Ecosystems

All of the following phrases describe a tropical rain forest except

A:

nutrient-rich soil.

B:

many arboreal plants and animals.

C:

canopy composed of many layers.

D:

broad-leaved evergreen trees.

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Aquatic Ecosystems

An oligotrophic lake

A:

is nutrient-rich.

B:

is cold.

C:

is likely to be found in an agricultural or urban area.

D:

has poor productivity.

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Aquatic Ecosystems

Which zone of the oceanic province is completely dark?

A:

epipelagic zone

B:

mesopelagic zone

C:

bathypelagic zone

D:

euphotic zone

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Aquatic Ecosystems

In an ocean, the highest concentrations of phytoplankton would be found in the

A:

intertidal zone.

B:

euphotic zone.

C:

pelagic zone.

D:

All areas would have roughly equal concentrations.

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