Ch 9: Community change over time (Succession)
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What is the gradual process of ecological change that occurs in an ecosystem over time until it reaches a stable and self-sustaining state known as a climax community?

  • Revolution
  • Mutation
  • Evolution
  • Succession (correct)
  • Which type of organisms are the first to colonize and inhabit a newly formed or disturbed area in the process of succession?

  • Mature Species
  • Pioneer Species (correct)
  • Extinct Species
  • Endangered Species
  • What is the final, stable community that is reached at the end of succession?

  • Climax Community (correct)
  • Initial Community
  • Pioneer Community
  • Transient Community
  • Where does primary succession occur?

    <p>In a barren habitat</p> Signup and view all the answers

    Which type of succession begins with pioneer species?

    <p>Primary Succession</p> Signup and view all the answers

    What role do pioneer species play in succession?

    <p>Initiate the breakdown of rocks to form soil</p> Signup and view all the answers

    Which term is used to describe the process of regrowth or development following a disturbance in an existing ecosystem?

    <p>Secondary Succession</p> Signup and view all the answers

    What is the role of lichens in the process of primary succession?

    <p>Break down rocks to create soil</p> Signup and view all the answers

    Which plant group typically replaces the initial pioneers during primary succession?

    <p>Shrubs</p> Signup and view all the answers

    What best describes the characteristic of a climax community?

    <p>Stable and well-adapted to the environment</p> Signup and view all the answers

    In which type of succession does the process begin with a more developed soil base?

    <p>Secondary succession</p> Signup and view all the answers

    What typically occurs at a faster rate in secondary succession compared to primary succession?

    <p>Colonization of pioneer species</p> Signup and view all the answers

    Which vegetation types are generally the first to colonize during secondary succession?

    <p>Grasses and shrubs</p> Signup and view all the answers

    During succession, what makes the environment more suitable for the next stage of development?

    <p>Alterations by the preceding community</p> Signup and view all the answers

    What distinguishes secondary succession from primary succession in terms of habitat conditions?

    <p>Pre-existing soil</p> Signup and view all the answers

    What is the key difference between primary and secondary succession?

    <p>The presence of pioneer species</p> Signup and view all the answers

    What role do pioneer species play in primary succession?

    <p>Facilitate the breakdown of rocks to form soil</p> Signup and view all the answers

    What defines a climax community in ecological succession?

    <p>Dynamic equilibrium between species and environmental factors</p> Signup and view all the answers

    In which type of succession does secondary succession occur?

    <p>Disturbed ecosystems with pre-existing soil</p> Signup and view all the answers

    What initiates the process of primary succession?

    <p>Breakdown of rocks by pioneer species</p> Signup and view all the answers

    What is the primary difference in habitat between primary and secondary succession?

    <p>Absence or presence of soil</p> Signup and view all the answers

    Which term describes the process of ecological change in an ecosystem until it reaches a stable community?

    <p>Succession</p> Signup and view all the answers

    What is the role of lichens in primary succession?

    <p>Accelerate the weathering of rocks</p> Signup and view all the answers

    What characterizes a climax community?

    <p>Stable plant and animal species adapted to the environment</p> Signup and view all the answers

    In secondary succession, what facilitates the faster progression of community change?

    <p>More competitive vegetation</p> Signup and view all the answers

    Which category of plants typically replaces the initial pioneers during primary succession?

    <p>Shrubs and ferns</p> Signup and view all the answers

    What contributes to making an environment more suitable for the next stage of succession?

    <p>Alterations made by the existing community</p> Signup and view all the answers

    What is the main factor that distinguishes secondary succession from primary succession?

    <p>Presence of soil and seed bank</p> Signup and view all the answers

    At what pace does secondary succession typically progress compared to primary succession?

    <p>It progresses faster</p> Signup and view all the answers

    What vegetation types are the first to colonize in a newly disturbed area during primary succession?

    <p>Lichens and mosses</p> Signup and view all the answers

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