Ecosystems and Their Components
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Which of the following best describes an ecosystem?

  • The same species living together in the same area.
  • The relationship between living organisms and their environment. (correct)
  • A group of related organisms that share similar characteristics and are capable of reproducing.
  • Populations of different species living and interacting in the same area.

    • Which of the following is an example of an abiotic component of an ecosystem?

  • Deer eating grass
  • Ants burrowing into the ground
  • Birds living in a tree
  • Water (correct)

    • What is the difference between a population and a community?

  • A group of related organisms that share similar characteristics and are capable of reproducing.
  • The relationship between living organisms and their environment.
  • The same species living together in the same area.
  • Populations of different species living and interacting in the same area. (correct)

    • Why is water important for living things?

    <p>It contains the majority of all living things.</p> Signup and view all the answers

    What do living things need food for?

    <p>All of the above.</p> Signup and view all the answers

    What do nutrients include?

    <p>Carbohydrates, fats, proteins, vitamins, and minerals.</p> Signup and view all the answers

    What do living things need energy for?

    <p>All of the above.</p> Signup and view all the answers

    What percentage of Earth's surface is covered with water?

    <p>About three-quarters</p> Signup and view all the answers

    What is an example of a biotic component of an ecosystem?

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

    What are ecosystems divided into?

    <p>Biotic and abiotic components</p> Signup and view all the answers

    Which of the following is NOT a source of energy for living things?

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

    Which of the following best describes symbiosis?

    <p>A relationship where one organism benefits and the other is unaffected</p> Signup and view all the answers

    Which of the following is an example of mutualism?

    <p>Barnacles on whales getting shelter while the whale is unharmed</p> Signup and view all the answers

    Which of the following is an example of parasitism?

    <p>Tapeworms living in the intestines of animals and feeding on digested food</p> Signup and view all the answers

    Which of the following is an example of commensalism?

    <p>Spiders depending on trees to provide a location for their webs</p> Signup and view all the answers

    Which of the following is an example of predation?

    <p>A pride of lions attacking a larger animal</p> Signup and view all the answers

    Which of the following is an example of competition?

    <p>Species competing for the same resources</p> Signup and view all the answers

    Which of the following best describes adaptation?

    <p>The process of organisms responding to their environment</p> Signup and view all the answers

    Which of the following is an example of a harsh living condition where life can still exist?

    <p>Antarctic with temperatures as low as -90°C</p> Signup and view all the answers

    Which of the following is NOT a need of living things?

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

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