class notes 4 biomes. i. what is a biome? a.a biome is a group of ecosystems around the world that...
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Class Notes 4Class Notes 4
BiomesBiomes
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I. What is a biome?I. What is a biome?
A. A biome is a group of ecosystems around the world that share the same abiotic factors (precipitation, temperature, elevation, etc)
B. As a result, they have similar communities.
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C. Two major types of biomesC. Two major types of biomes
1. Aquatic: in the water
a. Saltwater
b. freshwater
2. Terrestrial: on the land
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II. Aquatic BiomesII. Aquatic Biomes
A. Saltwater (marine)
1. Shallow, sunlit zones are called photic zones. These include tidepools and beaches
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2. Deep water that doesn’t receive light is called the aphotic zone
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3. When freshwater and saltwater mixes, this is called an estuary (many lagoons are estuaries)
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B. Freshwater biomes include lakes, ponds, rivers, and streams
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III. Terrestrial biomesIII. Terrestrial biomes
A. Terrestrial biomes are influenced by latitude, precipitation, and proximity to the ocean.
B. They include: tundra, taiga, temperate forest, tropical forest, grassland, and desert.
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SummarySummary
What makes the earth’s biomes differ?