Introduction to Producers in Biology
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Questions and Answers

What do bacteria at underwater vents do to make food?

  • Respiration
  • Fermentation
  • Photosynthesis
  • Chemosynthesis (correct)
  • Which organisms are mentioned as part of the complex ecosystem powered by food from chemosynthesis?

  • Eagles and vultures
  • Tubeworms and sea stars (correct)
  • Lions and tigers
  • Grasshoppers and ants
  • Why are producer organisms extremely important in the food web?

  • To form the basis of energy transfers (correct)
  • To provide shelter for other organisms
  • To regulate temperature
  • To control population growth
  • What can happen if there are too few producers in an ecosystem?

    <p>Not enough food to support the ecosystem</p> Signup and view all the answers

    What process can lead to an overgrowth of cyanobacteria in an aquatic ecosystem?

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

    What is the main cause of eutrophication in aquatic ecosystems?

    <p>Runoff from crop fertilizers</p> Signup and view all the answers

    Which statement best describes the impact of eutrophication on an ecosystem?

    <p>It disrupts the balance and causes dead zones</p> Signup and view all the answers

    What type of nutrients are typically added to an aquatic ecosystem during eutrophication?

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

    Why is an overgrowth of cyanobacteria during eutrophication harmful to an ecosystem?

    <p>It can disrupt the balance, causing a dead zone</p> Signup and view all the answers

    What process do bacteria at underwater vents use to make food?

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

    What can result from an overgrowth of producer organisms in an ecosystem?

    <p>Ecosystem collapse</p> Signup and view all the answers

    What is a main cause of eutrophication in aquatic ecosystems?

    <p>Runoff from crop fertilizers</p> Signup and view all the answers

    Why are producer organisms crucial in the food web?

    <p>To form the basis of energy transfers in the ecosystem</p> Signup and view all the answers

    How does eutrophication usually affect the balance in an aquatic ecosystem?

    <p>Causes oxygen depletion</p> Signup and view all the answers

    What happens if there are too few producer organisms in an ecosystem?

    <p>Decrease in food availability</p> Signup and view all the answers

    Which organisms can be part of a complex ecosystem powered by food from chemosynthesis?

    <p>Tubeworms and sea stars</p> Signup and view all the answers

    What typically leads to the formation of a dead zone in an aquatic ecosystem?

    <p>Overgrowth of cyanobacteria</p> Signup and view all the answers

    What is the consequence of an abundance of normally limiting nutrients being added to an aquatic ecosystem?

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

    How does chemosynthesis differ from photosynthesis in terms of energy source?

    <p>Chemosynthesis uses inorganic molecules, while photosynthesis uses sunlight</p> Signup and view all the answers

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