General Science - Life Science - Biomes
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61 Terms
What term defines regions across Earth that share similar climate, plants, and animals?
Biomes
Regions on Earth featuring similar climate, plants, and animals are referred to as ___________.
biomes
What structural scope and ecological permanence characterize biomes?
They form permanent ecosystems spanning large geographical areas.
Functioning as permanent ecosystems over vast geographical regions is characteristic of which concept?
Biomes
How many major biomes are recognized globally in this classification?
Seven major biomes
A total of ________ major biomes exist across the globe.
seven
What global latitudinal position characterizes the tundra biome?
High northern latitudes
The tundra biome is situated geographically in high northern ___________.
latitudes
Being recognized as the coldest of all biomes is characteristic of which environment?
Tundra
How does the tundra rank in temperature compared to other biomes?
It is the coldest of all biomes.
What is the condition of the subterranean ground beneath the tundra surface?
The ground remains frozen a few feet below the surface.
In the tundra, the ground remains frozen a few feet below the ___________.
surface
What limitation in plant root structure is found in the tundra?
It lacks deep root systems.
Due to frozen subsoil conditions, the tundra environment lacks deep ___________ systems.
root
Being recognized for vast treeless plains is characteristic of which biome?
Tundra
What landscape feature is the tundra notably known for possessing?
Treeless plains
Where is the taiga geographically situated relative to the tundra?
Located just south of the tundra.
The taiga biome is positioned geographically just ___________ of the tundra.
south
Containing mostly cold-tolerant evergreen trees is characteristic of which biome?
Taiga
What primary type of vegetation populates the taiga biome?
Cold-tolerant evergreen trees.
How are summer conditions in the taiga described?
Short, moist, and moderately warm.
In the taiga, summers are characterized as being short, moist, and moderately ___________.
warm
What climatic conditions define taiga winters?
Winters are cold and dry.
During the winter season, the taiga experiences conditions that are cold and ___________.
dry
Where are deciduous forests situated relative to the taiga?
Located south of the taiga.
Deciduous forests are positioned geographically just ___________ of the taiga.
south
Which global regions contain deciduous forests?
Eastern North America, northeastern Asia, and western and central Europe.
Across which continental areas are deciduous forests distributed?
Eastern North America, northeastern Asia, and western and central Europe.
What climatic profile characterizes deciduous forests?
Characterized by a moderate climate.
The deciduous forest biome is primarily characterized by a ___________ climate.
moderate
Having what seasonal characteristic defines deciduous forests alongside a moderate climate?
Features distinct winters.
How can the seasonal cycle of deciduous forests be described regarding cold months?
It features distinct winters.
What structural foliage trait do deciduous forest trees possess?
Trees have broad leaves that are shed annually.
In deciduous forests, trees possess broad leaves that are shed ___________.
annually
Which locations are examples of grassland regions?
The North American Great Plains and South American pampas.
Where can major grassland biomes be found across the world?
Locations like the North American Great Plains and South American pampas.
What primary plant type dominates grassland landscapes?
Grasses rather than large shrubs or trees.
Grasslands are dominated by grasses rather than large ___________ or trees.
shrubs
What environmental factor causes grasslands to be dominated by grasses instead of trees?
Insufficient rainfall.
The grass dominance in grassland biomes is caused by insufficient ___________.
rainfall
Where are tropical rainforests geographically positioned?
Located near the equator.
Tropical rainforests are situated geographically near the ___________.
equator
High temperatures and constant rainfall characterize which biome?
Tropical rainforests.
What climatic conditions are tropical rainforests known for?
High temperatures and constant rainfall.
How is tree growth height characterized in tropical rainforests?
Trees grow very tall.
Within tropical rainforests, trees grow very ___________.
tall
What structure is formed by the thick layer of leaves in tropical rainforests?
A canopy.
A thick layer of leaves in tropical rainforests forms a structure known as a ___________.
canopy
How does the forest canopy affect light levels at the ground in tropical rainforests?
The canopy greatly reduces light at ground level.
What effect does the leaf canopy have on ground-level illumination in tropical rainforests?
Greatly reduces light at ground level.
What proportion of Earth’s surface do deserts cover?
One-fifth of Earth’s surface.
Deserts cover approximately one- ___________ of Earth’s surface.
fifth
Being characterized by extreme dryness is a key feature of which biome?
Deserts.
What primary climatic feature defines deserts?
Extreme dryness.
How can temperature conditions in deserts vary?
They may be hot or cold.
Depending on their location and climate, deserts may be hot or ___________.
cold
Being the largest part of the biosphere is characteristic of which biome?
Marine.
What status does the marine biome hold within the global biosphere?
It is the largest part of the biosphere.
What percentage of Earth’s surface is covered by water in the marine biome context?
Almost 75%.
Water covers almost ___________ percent of Earth’s surface.
75