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Communities, Populations, and Ecosystems Questions - All Grades

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Grade 4 Communities, Populations, and Ecosystems
An ecosystem can be very small.
  1. True
  2. False
Grade 4 Communities, Populations, and Ecosystems
A group of the same kind of individuals living in the same area is called a population.
  1. True
  2. False
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 4 Communities, Populations, and Ecosystems
Suppose there are two ecosystems, A and B. Ecosystem A has moist soil, seeds, healthy communities, mild temperatures, and plenty of water. Ecosystem B has sandy and rocky soil, little or no water, no communities, and very hot temperatures. What is most likely to happen?
  1. Plants in A will be smaller and fewer than plants in B.
  2. Plants in B will be larger and more abundant.
  3. Plants in B will be likely to attract communities.
  4. Plants in A will be larger and more abundant.
Grade 8 Communities, Populations, and Ecosystems
What is the role a species plays in its ecosystem?
  1. natural selection
  2. adaptation
  3. niche
  4. none of the above
Grade 8 Communities, Populations, and Ecosystems
The maximum length of time an organism can be expected to live is a
  1. response.
  2. life span.
  3. development.
  4. metabolism.
Grade 1 Communities, Populations, and Ecosystems
A community and its physical environment together is a(n)                .
  1. population
  2. habitat
  3. ecosystem
  4. niche
Grade 3 Communities, Populations, and Ecosystems
A habitat includes both living and nonliving things.
  1. True
  2. False
Grade 4 Communities, Populations, and Ecosystems
A niche is a(n)
  1. community of animals.
  2. organism's special role in the environment.
  3. kind of habitat.
  4. part of the food web.
Grade 8 Communities, Populations, and Ecosystems
Competition for food, living space, or other resources can                         .
  1. limit population growth
  2. cause exponential growth
  3. stop symbiosis
  4. create a new ecosystem
Grade 5 Communities, Populations, and Ecosystems
What is a population?
  1. all the species that live in the same area together
  2. two parent cells joining together to form a new cell
  3. group of similar organisms that share the same area
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 11 Communities, Populations, and Ecosystems
Which scenario best illustrates the concept of carrying capacity?
  1. The exponential growth of a fruit fly population continues to increase and will eventually double in ten days.
  2. The exponential growth of ants increases dramatically when its competitor species is forced to move due to habitat loss.
  3. The logistic growth of a giraffe population continues to decline due to the increase in number of predators.
  4. The logistic growth of a bunny population has stabilized because the population has reached the largest numbers that the area can support.
Grade 10 Communities, Populations, and Ecosystems
You observe two male deer fighting over the same food resource. This interaction is an example of                 .
  1. competition
  2. symbiosis
  3. predation
  4. all of the above
Grade 4 Communities, Populations, and Ecosystems
What are the basic needs of organisms?
  1. water, food, haircuts, space, and air
  2. water, food, bed, pillow, and sleep
  3. water, food, habitat, space, and air
  4. water, food, habitat, sun, and air
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 4 Communities, Populations, and Ecosystems
An area or place where an organism lives in an ecosystem is its
  1. habitat.
  2. ecosystem.
  3. niche.
Grade 6 Communities, Populations, and Ecosystems
What sphere includes all the living organisms on Earth?
  1. biosphere
  2. cryosphere
  3. geosphere
  4. hydrosphere
Grade 8 Communities, Populations, and Ecosystems
An ecosystem goes through a flood. This bad weather event is an example of a
  1. niche.
  2. biotic factor.
  3. climax community.
  4. limiting factor.
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