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copy 3-6 graphics and 2 pages of understandable information. from the internet.
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copy and paste info ..10
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Total points..............25
10
5
4

19
TUNDRA BIOME 2

lichens.jpgmosses.jpgsedges.jpggrasses.jpgshrubs.jpg

the tundra is a treeless ares where there are icecaps and an arctic region with a tree line. it is a place with different types of plants that can resist the coldness of the climate. for example lichens is a type of symbiotic organisms. its a type of fungus that does not go throught the cycle of photosynthesis. but it can put some algae into it body. Mosses are small that dont grow very big. in growing season the melting snow gives some moisture and makes it hard to drain because of the snow.mosses produce spores which helps it survive the long and hard winter. sedges is a grass looking plant that grows in the same wet environment as mosses. it is not a true grasses because its releases it seeds in winter and grows all together in clumps. the type of grasses in tundras



Lichens

  • A lichen is actually a symbiotic organism. A fungus (which cannot perform photosynthesis) brings some algae (which can) into its body and the two cohabit as a pseudo-plant in all the best places, from the rainforest to the bare rocks of the arctic tundra. The growth commonly known as "reindeer moss" isn't a moss at all, but a lichen (Cladonia spp.).

Mosses

  • Mosses are small, low-growing plants that grow as dense mats in moist places. During the growing season, moisture from snowmelt cannot drain because of the permafrost, causing boggy areas highly suitable for mosses. Mosses produce spores, which can survive the long, harsh winters. Calliergon giganteum is a common moss on the tundra.

    Sedges

    • Sedges are grasslike plants that grow in the same soggy environments that mosses like. Cottongrass (Eriophorum angustifolium) -- which is not a true grass -- grows in clumps and casts its seeds to the winds. Species of the genus Carex are also found on the tundra.




Grasses
  • The tundra supports some tussock-forming grasses that grow in clumps to hold tight to the ground and grow by rhizomes, or underground stems. Arctagrostis latifolia (polar grass) and Poa arctica (Arctic bluegrass) show their tundra adaptation in their names.

Shrubs

  • The most common plant on the tundra is the bearberry (Arctostaphylos uva-ursi), a ground-hugging evergreen that produces bright red berries popular with birds and bears. Ledum groenlandicum, known as Labrador tea, is a low-growing shrub of the tundra used in folk medicine.