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Earth’s Biomes

Earth’s Biomes. e. Describe the characteristics of Earth’s major terrestrial biomes (i.e. tropical rain forest, savannah, temperate, desert, taiga, tundra, and mountain) and aquatic communities (i.e. freshwater, estuaries, and marine).

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Earth’s Biomes

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  1. Earth’s Biomes e. Describe the characteristics of Earth’s major terrestrial biomes (i.e. tropical rain forest, savannah, temperate, desert, taiga, tundra, and mountain) and aquatic communities (i.e. freshwater, estuaries, and marine).

  2. Biosphere- the thin zone around the outside of the Earth that contains all living things. • The biosphere contains self-sustaining ecosystems composed of biotic and abiotic factors. • Abiotic factors are those components of the ecosystem that are not living, but are integral in determining the number and types of organisms that are present. • In order for an ecosystem to succeed, its biotic factors must obtain and store energy. In addition, they must recycle water, oxygen, carbon and nitrogen.

  3. Ecosystems • A system • How the system of plants, animals and other organisms relate to one another and how both relate and interact with the environment in which they live.

  4. Communities • a smaller area within the ecosystem where certain types of plants or animals live in close proximity to each other • A community might have very different types of plants and animals living in one area---that is, the community is divided into populations of individual species. • Habitats are where the plants and animals live and eat. • Each species of the tree community has its own niche, or place, as a member of the community.

  5. biomes • Large land area ecosystems characterized by a dominant form of plant life and climate type. • There are many different biomes. • There is no cut and dry place that separates the biomes. • They gradually merge in to the next. • As climates change, the general area of a biome will shift.

  6. Terrestrial Ecosystems • Characterized by a dominant form of plant life and climate type. • There are several: • Tundra • Coniferous forest • Deciduous forest • Grassland • Tropical rain forest • Desert

  7. Aquatic Ecosystems • Determining factors are the amount of light, oxygen and the salinity(salt) level of the water. • There are several: • Freshwater ecosystems • Marine ecosystems (There are three zones: intertidal, pelagic, and benthic) • Estuary

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