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Study Guide for LS. 9 Quiz
Biomes: Rainfall and temperature are two abiotic factors that determine a type of
biome. A biome can contain one or more ecosystems.
Land Biomes
Temperate grassland- have small, seed eating mammals and no trees
Savanna- large herbivores live and graze on grass here, scattered clumps of trees
Tundra- characterized by permafrost-(soil that stays frozen all the time), no trees
Desert- plants grow far apart to reduce competition for water
- receives the lowest average yearly rainfall
- plants have fleshy stems and quick blooming flowers
Temperate deciduous forest:
- most trees are deciduous (lose their leaves in the Fall to help conserve water so
they can survive winter)
- soil is fairly rich and plants cover the forest floor
- animals eat nuts, leaves, and berries
Coniferous forest:
- contains conifers- trees that produce their seeds in cones and do not lose their
leaves in Fall
- they conserve water in the winter with the help of needlelike leaves & a waxy
coating on their leaves
Tropical rain forest:
- most biologically diverse (the most different types of plants and animals)
- topsoil is thin and poor
- the canopy blocks most of the light from the forest floor so few plants can grow
- receives the highest yearly average rainfall