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Ecosystems

Ecosystems. Organisms and Environments Lesson 1 TEKS 5.9A, 5.9C, 3.9A, 3.9C. Oh, Deer!!!!! Game!!!!!!!. Living things depend on each other and on the nonliving things in their environment in order to thrive . Changes in the environment cause changes to living organisms. Habitat.

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Ecosystems

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  1. Ecosystems Organisms and Environments Lesson 1 TEKS 5.9A, 5.9C, 3.9A, 3.9C

  2. Oh, Deer!!!!! Game!!!!!!! • Living things depend on each other and on the nonliving things in their environment in order to thrive. • Changes in the environment cause changes to living organisms.

  3. Habitat • The specific environment where an organism lives. meadow pond river tree soil

  4. Species • A group of organisms that can produce offspring that are like themselves

  5. Population • All the organisms of the same species that live in the same area at the same time.

  6. Community • Populations of different species that live in the same area at the same time.

  7. Ecosystem: all the populations of organisms and the Nonliving things in an environment, and the interaction among them. Living things: Plants Animals Nonliving things: Soil Water Oxygen Carbon Dioxide Sunlight + = Ecosystem Can be small (pond). Can be large (desert).

  8. Special Ecosystems

  9. Biome • One of the six major land areas of the world that is home to specific plant and animal populations and is defined by its climate.

  10. Tropical Forest • Warm temperatures • Rainy climate • Many trees and other plants • Many animals Have you seen Tarzan?

  11. Desert • Very little rainfall or snowfall • Can be hot temperature or cold temperature • Few plants or animals Have you seen Rango?

  12. Grasslands • Mostly flat land • Covered with tall grasses • Few trees • Warm climate • Not as dry as desert Have you seen Dances with Wolves?

  13. Deciduous Forest • Has four seasons • Warm summer and Cold winter • Trees lose their leaves in autumn • Many plants and animals

  14. Taiga • Evergreen forest: fir and pine trees • Long, cold winter • Short, mild summer • Elk, moose, bears, are some animals Have you seen Open Season?

  15. Tundra • Flat, open ground • Always frozen and cold all year long • Few plants: mosses, lichens, shrubs • Too harsh for trees • Polar bears, arctic hares, arctic fox, musk ox

  16. Vocabulary • Habitat: the specific environment where an organism lives • Species: a group of organisms that produce offspring like themselves • Population: All the organisms of the same species that live in the same area at the same time • Community: Populations of different species that live in the same area at the same time • Ecosystem: all the populations of organisms and the nonliving things in an environment, and the interaction among them • Biome: One of the six major land areas of the world that is home to specific plant and animal populations and is defined by its climate • Drought: a period of very little rainfall • Flood: an overflow of water onto land that is normally dry • Thrive: to grow in a strong and healthy way • Perish: to die

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