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Review for Week 21 Test

Review for Week 21 Test. Definitions. Sun : radiant energy Producer : autotroph- makes its own food Consumer : organism that eats other organisms (heterotroph) Decomposer : breaks down dead organism; puts nutrients back into the soil Scavenger: feeds off dead organisms- vulture.

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Review for Week 21 Test

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  1. Review for Week 21 Test

  2. Definitions • Sun: radiant energy • Producer: autotroph- makes its own food • Consumer: organism that eats other organisms (heterotroph) • Decomposer: breaks down dead organism; puts nutrients back into the soil • Scavenger: feeds off dead organisms- vulture

  3. First level consumer eats producers Second level consumer eats the first level consumerThird level consumer eats the second level consumerEnergy is lost by 10% for each level

  4. Photosynthesis- converting radiant energy to foodPredator- feeds on other organism for foodPrey- eaten by predatorScavenger- eats dead organisms for foodBacteria and fungi- decomposers

  5. Herbivore- plant eater • Carnivore- meat eater • Omnivore- eats both meat and plants (humans) • Niche- a place where an organism is well-suited to be • Condensation- when water vapor turns to a liquid (drops of water on the outside of a glass) • Glucose-sugar, a carbohydrate, product of photosynthesis • Algae- plant-like organism, green, found in water or damp places (pond-scum)

  6. Reactants  Products

  7. Food Chain

  8. Carbon Cycle

  9. Nitrogen Cycle

  10. Water Cycle- never ending cycle of water

  11. Greenhouse effect/gases

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