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Communities, Populations, and Ecosystems Questions - All Grades

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Grade 9 Communities, Populations, and Ecosystems
The study of organisms' interactions with their surroundings is
  1. abiotic.
  2. ecology.
  3. sociology.
  4. microbiology.
  5. geology.
Grade 5 Communities, Populations, and Ecosystems
Which of the following descriptions about the organization of an ecosystem is correct?
  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
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
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
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 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
A place where an organism lives is its
  1. biome.
  2. habitat.
  3. ecosystem.
  4. biosphere.
Grade 9 Communities, Populations, and Ecosystems
Grade 10 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 10 Communities, Populations, and Ecosystems
Different populations living in one place make up a(n)
  1. community.
  2. biome.
  3. species.
  4. ecosystem.
Grade 9 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
Grade 10 Communities, Populations, and Ecosystems
In an ecosystem, there are two categories to describe living things. These categories are
  1. plants and animals.
  2. biology and ecology.
  3. producers and consumers.
  4. energy and oxygen.
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