SAT II Biology E : Biomes, Habitats, and Niches
Study concepts, example questions & explanations for SAT II Biology E
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Example Questions
Example Question #1 : Ecological Principles
Which biome is characterized by hot, dry weather with mild, rainy winters, some vegetation, and occasional fires?
Chaparral
Temperate forest
Desert
Temperate grassland
Savanna
Chaparral
The chaparral biome is known for being rather dry and for having these characteristics. They are different than deserts, as deserts do not have a rainy season. While savannas are often warm, they have a longer 6-8 month rainy season.
Example Question #1 : Biomes, Habitats, And Niches
Which of the following is not an abiotic component of an ecosystem?
Humidity
Temperature
Molds
Minerals
Wind speed
Molds
Abiotic factors are non-living and molds are living.
Example Question #1 : Ecological Principles
An ecosystem includes which of the following?
Biomes and populations
Communities and populations
Communities only
Populations only
Biomes, communities, and populations
Communities and populations
Ecosystems are composed of communities and communities are composed of populations. A biome is a larger unit than an ecosystem, as it includes multiple ecosystems.
Example Question #1 : Biomes, Habitats, And Niches
1. Largest biome in the world
2. Short, wet summers and long, cold winters
3. Flora consists of mostly coniferous trees
The given statements most closely describe which biome?
Chaparral
Tundra
Taiga
Alpine
Deciduous forest
Taiga
The taiga biome is the largest biome in the world and is characterized by short, rainy summers coupled with long, freezing winters. Due to its extremely cold temperatures, the taiga's flora or plant life consists of mostly coniferous trees that can survive on the scarce nutrients available in the cold climate of the biome. In contrast, the tundra is frozen year-round and permafrost prevents any trees from growing. Deciduous forests, as the name suggests, sports mainly deciduous trees as its plant life. The alpine biome consists mostly of the areas right below the snow lines of mountains and is generally dry year-round. The chaparral is a relatively small biome that is characterized as being mostly hot and dry year-round, with mild winters.
Example Question #11 : Ecology
Which of the following biomes is dominated by grasses and herbaceous plants, with some trees and shrubs, and characterized by seasonal rains, a pronounced dry season, and often large migratory mammals?
Savanna
Desert
Tundra
Temperate deciduous forest
Tropical rainforest
Savanna
The characteristics listed describe a savanna. Deserts can also have pronounced periods of rain and dryness but are not dominated by grasses and not populated by large migratory animals. Tropical rainforests and deciduous forests are dominated by trees and tundras tend to be colder and may not receive much rainfall, but often have moist soil due to low evaporation rates.
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