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Ninth Grade (Grade 9) Communities, Populations, and Ecosystems Questions

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Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Every member of the same species that inhabits a region makes up a
  1. community.
  2. habitat.
  3. ecosystem.
  4. population.
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
A limiting factor that depends on population size is a                                  .
  1. size limiting factor
  2. prediction limiting factor
  3. completion limiting factor
  4. density-dependent limiting factor
Grade 9 Communities, Populations, and Ecosystems
Which is NOT considered to be a density-dependent factor?
  1. competition
  2. predation
  3. commensalism
  4. parasitism and disease
Grade 9 Communities, Populations, and Ecosystems
Which of these factors increases the size of a population?
  1. birthrate
  2. emigration
  3. death rate
  4. carrying capacity
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
The maximum amount of individuals an environment can support is the
  1. population size.
  2. carrying capacity.
  3. population model.
  4. population density.
Grade 9 Communities, Populations, and Ecosystems
Which of the following statements about the organization of an ecosystem is TRUE?
  1. Communities make up species, which make up populations.
  2. Populations make up species, which make up communities.
  3. Species make up communities, which make up populations.
  4. Species make up populations, which make up communities.
Grade 9 Communities, Populations, and Ecosystems
What is ecology?
  1. the study of life
  2. the study of habitats
  3. the study of the environment
  4. the study of interactions between organisms and their environment
Grade 9 Communities, Populations, and Ecosystems
Which situation is a good example of a limiting factor in an ecosystem?
  1. an ecosystem with little to no rain
  2. an organism with no natural predators
  3. an ecosystem with an abundance of nutrients
  4. an ecosystem with plenty of space for population growth
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Which of these statements describes a niche?
  1. an environmental factor that tends to limit population size
  2. an increase in the Earth's average atmospheric temperature that causes corresponding changes in climate, which may result from the greenhouse effect
  3. the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active, and other factors
  4. none of the above
Grade 9 Communities, Populations, and Ecosystems
What is a biosphere?
  1. A term that refers to all the water based life on Earth.
  2. A term that refers to all the land based life on Earth.
  3. A term that refers to all the microcellular life on Earth.
  4. A term that refers to all life on Earth and how it interacts.
Grade 9 Communities, Populations, and Ecosystems
All the members of a species that live in an area make up a(n)
  1. community.
  2. habitat.
  3. ecosystem.
  4. population.
Grade 9 Communities, Populations, and Ecosystems
What is the separation of an ecosystem into smaller pieces of land?
  1. overexploitation
  2. habitat fragmentation
  3. pollution
  4. speciation
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