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

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Grade 10 Communities, Populations, and Ecosystems
What is a group of organisms of the same species that live in the same area?
  1. population
  2. community
  3. ecosystem
  4. habitat
Grade 10 Communities, Populations, and Ecosystems
Which term refers to an interaction among groups of organisms with the nonliving environment?
  1. biosphere
  2. biome
  3. habitat
  4. ecosystem
Grade 10 Communities, Populations, and Ecosystems
No population can grow indefinitely. The ultimate size of any population is limited by
  1. the carrying capacity of its environment.
  2. its death rate.
  3. its birth rate.
  4. its r value.
Grade 10 Communities, Populations, and Ecosystems
What statement best describes why ecological succession occurs?
  1. Plants and animals grow and as they grow they spread to new areas.
  2. Every organism changes the environment it lives in. As more organisms inhabit an area, it becomes more livable for other organisms.
  3. The older generation always takes the place of the younger generation.
  4. The new plants and animals move in and kill the old plants and animals due to the natural order.
Grade 10 Communities, Populations, and Ecosystems
The human population is growing exponentially.
  1. True
  2. False
Grade 10 Communities, Populations, and Ecosystems
Which term describes a group of different species that live together in a defined area?
  1. a biosphere
  2. a population
  3. a community
  4. an ecosystem
Grade 10 Communities, Populations, and Ecosystems
                  occurs when a population's growth slows or stops following a period exponential growth.
  1. Carrying capacity
  2. Demography
  3. Age-structure
  4. Logistic growth
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
What an organism does and how it interacts with biotic and abiotic factors in the environment is its
  1. habitat.
  2. biome.
  3. niche.
  4. population.
Grade 10 Communities, Populations, and Ecosystems
Which factors affect population growth rates?
  1. net emigration
  2. net immigration
  3. birth rate
  4. all of the above
Grade 10 Communities, Populations, and Ecosystems
A physical environment with different species that interact with one another and with nonliving things is called a(n)
  1. biosphere.
  2. ecosystem.
  3. habitat.
  4. adaptation.
Grade 10 Communities, Populations, and Ecosystems
The size of the human population tends to decrease with time.
  1. True
  2. False
Grade 10 Communities, Populations, and Ecosystems
What is the maximum number of individuals in a species that an environment can support?
  1. carrying capacity
  2. eutrophication
  3. density-dependent factor
Grade 10 Communities, Populations, and Ecosystems
The number of individuals per unit area determines the population's
  1. mortality.
  2. age distribution.
  3. density.
  4. niche.
Grade 10 Communities, Populations, and Ecosystems
The number of individuals of a single species per unit area is
  1. carrying capacity.
  2. logistic growth.
  3. population density.
  4. population growth rate.
Grade 10 Communities, Populations, and Ecosystems
The role an organism plays in its ecosystem is its
  1. niche.
  2. community.
  3. habitat.
  4. symbiosis.
Grade 10 Communities, Populations, and Ecosystems
The number of individuals of a single species per unit area is
  1. carrying capacity.
  2. logistic growth.
  3. population density.
  4. population growth rate.
Grade 10 Communities, Populations, and Ecosystems
Which factor would most likely be an example of a density-independent factor that limits population growth?
  1. disease
  2. food availability
  3. daily temperature extremes
  4. parasites
Grade 10 Communities, Populations, and Ecosystems
Which statement describes the difference between an ecosystem and a community?
  1. A community includes both living and nonliving parts.
  2. An ecosystem includes both living and nonliving parts.
  3. An ecosystem includes only living parts.
  4. There is no difference between an ecosystem and a community.
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