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Organisms and Their Environment
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Standards S7L4 Students will examine the dependence of organisms on one another and their environment.
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Learning Goals Distinguish between the biotic and abiotic parts of the environment. Explain how the five levels of environmental organization are related. Describe how the abiotic parts of the environment affect ecosystems.
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Essential Question How do living and non-living factors interact?
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What is Ecology?? The study of interactions that take place between organisms and their environment. Ecology explains how living organisms affect each other and the world they live in.
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What are Biotic Factors?
Biotic factors all the living organisms that inhabit an environment. All organisms depend on others directly or indirectly for food, shelter, reproduction, or protection.
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What are Abiotic Factors?
Abiotic factors are the nonliving parts of an organism’s environment. Examples include air currents, temperature, moisture, light, and soil. Abiotic factors affect an organism’s life.
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Habitat & Niche Habitat is the place a plant or animal lives
Niche is an organism’s total way of life
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Levels of Organization
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What are the Simplest Levels?
Atom Molecule Organelle Cell Tissue Organ System
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What are the Levels of Organization?
Organism Population Community Ecosystem Biosphere
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1st Level of Organization
Organism: An individual living thing that is made of cells, uses energy, reproduces, responds, grows, and develops
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2nd Level of Organization
Population: A group of organisms, all of the same species, which interbreed and live in the same place at the same time.
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3rd Level of Organization
Community: All the populations of different species that live in the same place at the same time.
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4th Level of Organization
Ecosystem: Combination of biotic factors interacting withthe abiotic environment. (terrestrial or aquatic)
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5th Level of Organization
Biosphere: The portion of Earth that supports life.
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The Biosphere Life is found in air, on land, and in fresh and salt water. The BIOSPHERE is the portion of Earth that supports living things.
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Ecology Vocabulary Review
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What level of organization?
Organism
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Abiotic or Biotic? Biotic
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Abiotic or Biotic? Abiotic
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What level of Organization?
Community
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Abiotic or Biotic? Biotic
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What level of Organization?
Population
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Abiotic or Biotic? Abiotic
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Abiotic or Biotic? Biotic
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What level of Organization?
Population
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What do you see….?
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