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5 Written questions

5 Matching questions

  1. 14. What are two major interactions between organisms in an ecosystem?
  2. 12. What is an organism's niche?
  3. 4. What are the levels of organization in an ecosystem?
  4. 23. What is a pioneer species and how are they important to the steps of succession?
  5. 7. What can cause a population to increase? Decrease?
  1. a -Predation
  2. b The first species to populate an area
  3. c I- birth rate and immigration can make a population increase, space
    D- limiting factors, food shortages, emigration, and natural disasters can make a population decrease
  4. d An organism role or job, determined by what an organism eats, how it eats, who it eats, how it reproduces, and physical conditions it requires to survive.
  5. e Organism-population-community-ecosystem

5 Multiple choice questions

  1. 1. Abandoned field
    2. Tree growth begins
    3. Forest
    4. Climax community
  2. Because it would cause competition, because you can't share a job with something
  3. P- a tick on a dog
    C- a bird sitting on a deer
    M- a bee pollinating a flower
  4. Hiding in its shell, claws, being nocturnal, cunning
  5. The study of how organisms interact with each other and with their environment

5 True/False questions

  1. 10. What is an adaptation?Behaviors & physical characteristics that allow organisms to survive in their environment


  2. 15. Explain the relationship between a predator and prey. Explain how the each population affects the other's population.Running fast, claws, being nocturnal, stealth


  3. 16. Explain adaptations a predator has to make it a good predator.Running fast, claws, being nocturnal, stealth


  4. 22. What are the two types of succession and how are they different?Primary- he series of changes that occur in an area where no soil or organisms exist- takes 100's of years
    Secondary- the series of changes that occur in an area where the ecosystem ha been disturbed, but where soil and organisms still exist- takes a couple years


  5. 9. What is a limiting factor? Give examples.-An environmental factor that causes a population to stop growing or to decrease in size
    -Natural disaster, space, food, water, weather conditions, population growth, disease