6th+Period+Unit+4+Billy+and+Ilana

**__VOCABULARY:__**
__**Ecology- the study of the interactions of living organisms with one another and with their environment.**__ Biome: a large region characterized by a specific type of climate and certian types of plant and animal communities. There are sevral types of biomes like: savanna, desert, tundra, temperate deiduos forest,coniferouse forest, tropical rainforest, and temperate grasslands. there are also Marine Ecosystems like: Intertidal zone, Neretic zone, Oceanic zone, Bethnic zone, and there is also an Estuary. Here are the defenisions of them: **__LAND BIOMES:__**

Savanna: a grassland that often has scattered trees and that is found in tropical and subtropical areas where seasonal rains, fires, and droughts happen.
Desert: an area that has little or no plant life, long periods without rain, and extreme temperatures; usually found in hot climates. Tundra: a treeless plain found in the Arctic, in the Antarctic, or on the tops of mountians that is characterized by very low winter temperatures and short cool summers. Temperate Deiduos Forest: When trees loose their leaves or change colors. Coniferous forest: when the trees produce seeds in cones. Tropical Rainforest: it has more plants and animals than other forests. Temerate Grassland: few trees, mainly grass.

__**OTHER VOCAB:**__

Estuary: an area where freshwater formed streams and rivers spill into the ocean. Swamp:a wetland ecosystem in which shrubs and trees grow. Marsh:a treeless wetland ecosystem where plants such as grasses grow. Wetland: an area of land that is periodically underwater or whose soil contians a great deal of moisture. media type="custom" key="15452860" width="248" height="248"media type="custom" key="16170604" width="220" height="220" media type="custom" key="15476270" width="240" height="240" align="left"

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