Biome study guide
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What is the definition of Biome?
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the largest geographic biotic unit, a major community of plants and animals with similar life forms and environmental conditions.
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what are biomes based primarily on?
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biomes are primarily based on climate.
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what are the two main factors affect4ion climate?
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latitude, altitude/elevation.
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how many biomes are there?
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8- trop. rainforest/savanna, desert, chaparral, grassland, temperate deciduous forest, temperate boreal forest, tundra.
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what percentage of the world's animals are found in the tropical rainforest?
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50%, possibly more.
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what type of species do tropical savannas have more than any other biome?
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there are more species of grazing mammals than any other biome.
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where are deserts found (latitude)?
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deserts are typically found between 25 and 40 latitude.
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where are chaarral biomes afound on condtinents?what is the main feature of chaparral?
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they are found on the west coast of the continents; they are extremely resistant to drought and weather events.
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where are trees found in the grassland?
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because of the dry climate tree are found only near water sources such as streams.
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what happens to tree int eh temp. deciduouis forest during winter?
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most trees will lose their leaves int eh winter.
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where are temp. boreal forests found (taiga/latitude)?
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they are typically found between 45 and 60 north latitude.
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what does tundra mean?
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treeless or marshy plain
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(Chaparral) dhow is the evergreen the tree adapted to this biome?
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in has needles that aid int eh prevention of water loss.
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how is the cork oak tree adapted to this biome?
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this tree has small leathery leaves that prevent fire by absorbing water.
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what is the main environmental problem of the chaparral?what is happening to the plants because of this?
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since the precipitation int his area is very low wild fires occur often. the plants are evolving in ways to become fire resistant.
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(Desert) what was the highest recoreded temperature?
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136 degrees F.
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how is the cactus adapted to life in the desert?
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the root system of the plant tis veary large so it can obtain as much water as possible.
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how does the horned viper adapted tot he hear?
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they usually bury themselves int eh sand in order to keep cool.
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(Grassland) what animals were hunted nearly to extinction?
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bison
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how is the red fox adapted to this biome?
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they are sly and intelligent; have excellent haering and can pinpoint prey.
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how is the prairie dog adapted to little rainfall ingrasslands?
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they do not drink water, instead get all their water needs from leafy plants they eat.
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(Temperate boreal forest)(taiga) what form of percipitaion mainly exists int eh taiga?
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rain 90%(10%snow)
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How are the trees int eh taiga adapted to their environment?
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shed snow easily;needles have thick waxy coating and small surface area.
