Ecology Basics: Organisms and Environment
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Questions and Answers

What do organisms in a trophic level use energy for?

  • For life processes and releasing heat (correct)
  • Only for cellular respiration
  • Only for growth
  • Only for photosynthesis
  • What percentage of energy is transferred to the next higher trophic level?

  • 90%
  • 1%
  • 50%
  • 10% (correct)
  • What type of pyramid represents the amount of living organic matter at each trophic level?

  • Energy Pyramid
  • Biomass Pyramid (correct)
  • Ecological Pyramid
  • Food Web Pyramid
  • Which of the following is an example of a pesticide?

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

    Who is the tertiary consumer in the given food web?

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

    What type of pyramid shows the relative amount of energy available at each trophic level?

    <p>Energy Pyramid</p> Signup and view all the answers

    What is an example of competition for resources mentioned in the text?

    <p>Gray squirrels competing with red squirrels for food</p> Signup and view all the answers

    What is the ecological niche of an organism dependent on?

    <p>Both the habitat and the role it has in its environment</p> Signup and view all the answers

    What is an example of mutualism mentioned in the text?

    <p>A sunflower and bees</p> Signup and view all the answers

    What is the term for when one organism captures and feeds on another organism?

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

    What is the analogy used to describe the difference between habitat and niche?

    <p>Habitat is the 'address' and niche is the 'profession'</p> Signup and view all the answers

    What is the term for a relationship in which two species live closely together?

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

    What is the primary energy source for life on Earth?

    <p>Light energy</p> Signup and view all the answers

    What is the process by which producers convert light energy into chemical energy?

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

    What is the term for organisms that rely on other organisms for their energy and food supply?

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

    Which of the following is an example of a herbivore?

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

    What is the term for the network of food chains within an ecosystem?

    <p>Food Web</p> Signup and view all the answers

    Which of the organisms is the top consumer in the food web?

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

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