Ecosystem Biogeochemical Processes Quiz
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Questions and Answers

What process results in a higher concentration of chemicals in apex predators within a food web?

  • Biomagnification (correct)
  • Predation
  • Competition
  • Bioaccumulation
  • Which law of thermodynamics states that energy can be transformed but not created or destroyed?

  • Law of Conservation of Mass
  • Third Law of Thermodynamics
  • First Law of Thermodynamics (correct)
  • Second Law of Thermodynamics
  • What happens when resources are limited in an ecosystem and organisms strive to obtain them?

  • Biomagnification happens
  • Bioaccumulation occurs
  • Predation reduces prey population
  • Competition arises (correct)
  • Which law states that mass is neither created nor destroyed in chemical reactions?

    <p>Law of Conservation of Mass</p> Signup and view all the answers

    What is the main difference between bioaccumulation and biomagnification in an ecosystem?

    <p>Biomagnification transfers chemicals between trophic levels</p> Signup and view all the answers

    In the context of ecosystems, what is the main consequence of predation on prey populations?

    <p>Decreases species diversity</p> Signup and view all the answers

    What does the biomass pyramid represent?

    <p>Total organic matter present at different trophic levels</p> Signup and view all the answers

    Which process is responsible for converting nitrogen into various forms in the nitrogen cycle?

    <p>Nitrogen fixation by nitrogen-fixing bacteria</p> Signup and view all the answers

    What provides the energy for the water cycle?

    <p>Solar radiation</p> Signup and view all the answers

    Which biogeochemical cycle describes the transformation and translocation of phosphorus?

    <p>Phosphorus cycle</p> Signup and view all the answers

    What is the main focus of ecological succession?

    <p>Changes in an ecological community over time</p> Signup and view all the answers

    In a competition interaction between organisms, what is usually involved?

    <p>Attempts to use ecological resources at the same time and place</p> Signup and view all the answers

    What is the main role of a biogeochemical cycle?

    <p>Recycle the elements on Earth</p> Signup and view all the answers

    How does ecological succession influence ecosystems?

    <p>Initiates colonization of new areas and recolonization after destruction</p> Signup and view all the answers

    What is the significance of gametogenesis?

    <p>Production of reproductive cells</p> Signup and view all the answers

    Which statement best describes the third law of ecology?

    <p>Major man-made changes in natural systems are likely detrimental</p> Signup and view all the answers

    How does mass conservation relate to chemical reactions?

    <p>Mass remains constant throughout a reaction</p> Signup and view all the answers

    What is the outcome of exploiting nature according to 'There Is No Such Thing as A Free Lunch'?

    <p>Conversion of resources from useful to useless</p> Signup and view all the answers

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