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20 Cards in this Set
- Front
- Back
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where is the majority of fresh water stored on the planet?
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glaciers/ice
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what are the three main zones in a lake?
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littoral, limnetic, profundal
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what is the difference between a pond and a lake?
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a lake has the limnetic zone and profundal zone but the pond only has the limnetic zone
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explain the profundal zone of a lake?
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the area at the bottom of a lake with little sunlight. photosynthesis cannot occur.
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explain the limnetic zone of a lake?
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the area at the top of the lake with enough light for photosynthesis to occur.
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explain the littoral zone of a lake?
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the shore line of a lake where most plants are rooted.
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define the term biome?
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a large geographical region with a specific range of tempuratures and precipitation
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how many biomes are there in canada? and what are they?
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4. taiga, deciduous forests, grassland, tundra
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define ecotone?
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a transition area between ecosytems
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what are terrestrial ecosystems?
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ecosystems that are found anywhere on earth that are not covered by water
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what is permafrost?
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permanently frozen soil
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what is muskeg?
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soil above the perfafrost that is swampy or boggy in the summer
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what types of plants grow here?
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lichen
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the black earth of grassland ecosystems is said to be:
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the most fertile in the world
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where is the deciduous forest ecosystem found?
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edge of grassland
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what is biological diversity?
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a variety of species in a specific area
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what is monoculture?
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cultivation of a single species
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what is the value of monoculture?
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higher ammounts
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what is the canopy?
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the upper layer of vegitation in a forest
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what does biotic mean? what is thew opposit of biotic?
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living, abiotic
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