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Seventh Grade (Grade 7) Communities, Populations, and Ecosystems Questions

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Grade 7 Communities, Populations, and Ecosystems
Is an organism's job in its environment called its habitat?
  1. Yes
  2. No
Grade 7 Communities, Populations, and Ecosystems
Even trees                 for resources; they usually do not like to grow close together.
  1. invade
  2. search
  3. hunt
  4. compete
Grade 7 Communities, Populations, and Ecosystems
The ocean prevents the Australian kangaroo from dispersing throughout the world. This is an example of which limit to dispersal?
  1. climate
  2. physical barrier
  3. competition
  4. exotic species
Grade 7 Communities, Populations, and Ecosystems
The distance between organisms in a population is fairly consistent when the organisms are
  1. evenly spaced.
  2. clumped.
  3. random.
  4. scattered.
Grade 7 Communities, Populations, and Ecosystems
Which of the following breaks down the decomposing plant material?
  1. Bears and lions
  2. Worms and insects
  3. Fish and sharks
  4. Birds and bats
Grade 7 Communities, Populations, and Ecosystems
Which term refers to the plant life in a given area?
  1. fauna
  2. flora
  3. symmetry
  4. bilateral
Grade 7 Communities, Populations, and Ecosystems
Is soil management important? Why or why not?
Grade 7 Communities, Populations, and Ecosystems
Give an example of a population.
Grade 7 Communities, Populations, and Ecosystems
Give an example of a community.
Grade 7 Communities, Populations, and Ecosystems
What are the 3 stages of a population?
Grade 7 Communities, Populations, and Ecosystems
What are two of the three uses that change the land?
Grade 7 Communities, Populations, and Ecosystems
What is nutrient depletion? What kind of land use produces it?
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