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Science Chapter 4

  •  English    17     Public
    Ecosystems in Balance
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  • Organisms that all want the same thing are in ______________.
    competition
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  • The job or role an organism has in an ecosystem is its _________.
    niche
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  • A characteristic that helps an organism survive in its environment is an ___________
    adaptation
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  • The white fur of the polar bear is an example of ___________.
    camouflage
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  • An adaptation in which one organism imitates or looks like another is called ________.
    mimicry
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  • An organism that is __________ is gone forever. :-(
    extinct
  •  15
  • Predators often compete for the same __________.
    prey
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  • The shape of a bird's beak is an example of _____________.
    an adaptation
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  • A snowy owl most likely lives in the _____________.
    cold tundra
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  • An ecosystem can be changed by these things:___________, ________, _____, ____
    Floods, droughts, fires, people
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  • Give an example of an animal that is now extinct:
    Dodo bird, dinosaur, saber-toothed cat
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  • When an ecosystem changes, living things may ________ OR ___________.
    relocate or perish
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  • When living things do not survive, that type of organism may become _______ OR _______.
    endangered or extinct
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  • When an ecosystem ____________, the organisms living there are affected.
    changes
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  • Many types of organisms share the same _____________.
    ecosystem
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  • Fail to survive
    perish
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