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Understanding Ecosystems: Species Identification and Evolution

Explore the interconnectedness of ecosystems through species identification, biotic vs. abiotic factors, levels of organization, and evolution by natural selection. Learn how species adapt, survive, and influence each other's genetic changes.

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Understanding Ecosystems: Species Identification and Evolution

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  1. Chapter 4 Review

  2. Ecosystem or Not YES YES YES Lake Irene Coral reef Oak forest NO YES YES Ocean Vacant lot Utility pole

  3. Which organisms most likely belong to the same species? People at a football game Bacteria in your stomach Birds in a forest Organisms in a pond

  4. TRUE OR FALSE True True False True

  5. Biotic vs. Abiotic Factors Living components Non-living components BIOTIC ABIOTIC bacteria soil A dead fish temperature octopus sunlight Mr. Feeny rock Soil Temperature bacteria sunlight A dead fish octopus rock Mr. Feeny

  6. Levels of Organization organism population community ecosystem

  7. Evolution by Natural Selection • Organisms are more likely to survive because they: • Have certain physical ____________________ • ________________ certain physical traits • Engage in certain ________________________ traits lack behaviors T O D P A N T A I A Reproduction ADAPTATION Must happen for evolution to occur An inherited trait that increases an organism’s chance of survival & reproduction in a certain environment

  8. German shepherds are a breed of dog that exist because of… coevolution Artificial selection resistance Natural selection

  9. Two species changing genetically in response to long-term interactions with each other is… coevolution Artificial selection resistance Natural selection

  10. If an insect can no longer be killed by a particular insecticide, it has developed… coevolution Artificial selection resistance Natural selection

  11. Kingdoms ofLiving Things

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