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5 Written questions

5 Matching questions

  1. 14. What are two major interactions between organisms in an ecosystem?
  2. 3. Give examples of abiotic and biotic factors.
  3. 7. What can cause a population to increase? Decrease?
  4. 15. Explain the relationship between a predator and prey. Explain how the each population affects the other's population.
  5. 23. What is a pioneer species and how are they important to the steps of succession?
  1. a Biotic- plants, animals, paper
    Abiotic- sun, water, soil
  2. b 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
  3. c The first species to populate an area
  4. d -Predation
    -Competition
  5. e Predator: wolf- helps control the population by eating the prey
    Prey: deer- provides food for the predator

5 Multiple choice questions

  1. 1. Abandoned field
    2. Tree growth begins
    3. Forest
    4. Climax community
  2. A habitat is an environment that provides the things a specific organism needs to live grow and reproduce
    It should provide food, water & shelter and anything else it needs to stay in its habitat
  3. The way that animals inter act with each other and live together and at least one benefits
  4. The study of how organisms interact with each other and with their environment
  5. The series of predictable changes that occur in a community over time

5 True/False questions

  1. 2. What is the difference between biotic and abiotic factors in an ecosystem?Biotic- the parts of a habitat that are living, or were once living and interact with an organism
    Abiotic- the nonliving parts of an organism's habitat

          

  2. 10. What is an adaptation?The series of predictable changes that occur in a community over time

          

  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. 4. What are the levels of organization in an ecosystem?-Predation
    -Competition