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Tenth Grade (Grade 10) Communities, Populations, and Ecosystems Questions

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Grade 10 Communities, Populations, and Ecosystems
Which statement describes an ecosystem?
  1. When a cleaner shrimp is cleaning
  2. A physical environment with different species that interact with on another
  3. Moving up a level
  4. A working car
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Which of the following factors will affect population growth rates?
  1. net emigration
  2. net immigration
  3. birth rate
  4. all the above
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
What is a disadvantage of biological control?
  1. can kill too many pests
  2. the new predator may decide not to eat the pests
  3. it is expensive
  4. can disrupt food chains
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
To calculate the human population density of your community, you would need to know the number of people living there and
  1. the size of the area in which they live
  2. the birth rate of the population
  3. the dispersion pattern of the population
  4. whether population growth is logistic or exponential
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
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