Chapter 6 Key Terms Flashcards

1
Q

biome

A

a large region characterized by a specific typeof climate and certain types of plant and animal communities

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2
Q

climate

A

the average weather conditions in an area over a long period of time

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3
Q

latitude

A

the distance north or south from the equator; expressed in degrees

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4
Q

altitude

A

the height of an object above a reference point, such as sea level or the Earth’s surface

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5
Q

tropical rain forest

A

a forest or jungle near the equator that is characterized by large amounts of rain and little variation in temperature and that contains the greatest known diversity of organisms on Earth

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6
Q

emergent layer

A

the top foliage layer in a forest where the trees extend above surrounding trees

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7
Q

canopy

A

the layers of treetops that shade the forest floor

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8
Q

epiphyte

A

a plant that uses another plant for support, but not for nourishment

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9
Q

understory

A

a foliage layer that is beneath and shaded by the main canopy of a forest

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10
Q

temperate rain forest

A

a forest community (or biome), characterized by cool, humid weather and abundant rainfall, where tree branches are draped with mosses, tree trunks are covered with lichens, and the forest floor is covered with ferns

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11
Q

temperate deciduous forest

A

a forest (or biome) that is characterized by trees that shed their leaves in the fall

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12
Q

taiga

A

a region of evergreen, coniferous forest below the arctic and subarctic tundra regions

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13
Q

savanna

A

a plain full of grasses and scattered trees and shrubs; found in tropical and subtropical habitats and mainly in regions with a dry climate, such as East Africa

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14
Q

temperate grassland

A

a community (or biome) that is dominated by grasses, has few trees, and is characterized by cold winters and rainfall that is intermediate between that of a forest and a desert

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15
Q

chaparral

A

a type of vegetation that includes broad-leafed evergreen shrubs and that is located in areas with hot, dry summers and mild, wet winters

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16
Q

desert

A

a region that has little or no vegetation, long periods without rain, and extreme temperatures; usually found in warm climates

17
Q

tundra

A

a treeless plain that is located in the Arctic orAntarctic and that is characterized by very low winter temperatures; short, cool summers; and vegetation that consists of grasses, lichens, and perennial herbs

18
Q

permafrost

A

in arctic regions, the permanently frozen layer of soil or subsoil