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regions that have distinctive climates and organisms and that contain many separate but similar ecosystems
tropical rain forest
warm, wet biome that occurs in a belt around the Earth near the equator and that contains the greatest diversity of organims on Earth
temperate rain forest
cool, humid biome where tree branches are draped with mosses, tree trunks are covered with lichens, and the forest floor is covered with ferns
temperate deciduous forest
forest in an area of extreme seasonal variation in which trees drop their leaves each fall
biome dominated by conifers and characterized by harsh winters; occurs just below the Arctic Circle, aka Northern coniferous forest
weather conditions in an area- temperature, precipitation, humidity, and winds- over a long period of time
biome without trees, where grasses and tough schrubs grow in the frozenn soil; extends from the Arctic Circle to the North Pole
shallow-water area near the shores of lakes and ponds where sunlight reaches the bottom
aquatic ecosystem in which fresh water from rivers mixes with salt water from the ocean, forming a nutrient trap
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