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Seventh Grade (Grade 7) Ecology Questions

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Grade 7 Communities, Populations, and Ecosystems
A subset of a biome with similar climates and organisms is a(n)
  1. ecosystem.
  2. biosphere.
  3. eco-region.
  4. population.
Grade 7 Food Chains and Webs
Which consumer is a herbivore?
  1. lion
  2. deer
  3. cat
  4. snake
Grade 7 Food Chains and Webs
When a hungry cheetah kills and eats a zebra, it is called
  1. competition.
  2. predation.
  3. dinner time.
  4. mutation.
Grade 7 Food Chains and Webs
When a hungry cheetah eats a zebra, the zebra is the cheetah's
  1. predator.
  2. mutant.
  3. parasite.
  4. prey.
Grade 7 Conservation and Biodiversity
What does the one "P" stand for as one of the main causes of biodiversity loss?
  1. pollution
  2. predator
  3. prey
  4. permafrost
Grade 7 Food Chains and Webs
Which animal is a predator?
  1. earthworm
  2. red-tailed hawk
  3. cricket
  4. mouse
Grade 7 Communities, Populations, and Ecosystems
Which factor affects the size and growth of a population?
  1. number of births and deaths
  2. competition between populations
  3. emigration and immigration
  4. all of the above
Grade 7 Biomes
Which biome has the greatest diversity of living things?
  1. grassland
  2. tundra
  3. rainforest
  4. desert
Grade 7 Communities, Populations, and Ecosystems
All                 have a limited amount of food, water, living space, mates, nesting sites, and other resources.
  1. communities
  2. ecosystems
  3. populations
  4. neighborhoods
Grade 7 Food Chains and Webs
                    make their own food, whereas consumers eat other organisms to get food.
  1. Tertiary consumers
  2. Primary consumers
  3. Secondary consumers
  4. Producers
Grade 7 Communities, Populations, and Ecosystems
If two organisms rely on the same limited resource,                 will likely result.
  1. extinction
  2. competition
  3. photosynthesis
  4. decomposition
Grade 7 Succession
In what environment can ecologic succession take place?
  1. forest
  2. tundra
  3. anywhere
  4. desert
Grade 7 Biotic and Abiotic
A                      is any biotic or abiotic factor that limits the number of individuals in a population.
  1. determination
  2. limiting factor
  3. natural selector
  4. populous determinant
Grade 7 Biomes
The combination of natural resources in a forest (air, light, soil, water) determine
  1. the size of the forest.
  2. the kind of fauna and flora.
  3. the amount of eggs a bird can lay.
  4. none of the above
Grade 7 Food Chains and Webs
A connected group of food chains is a                           .
  1. habitat
  2. food web
  3. ecosystem
  4. predator/prey relationship
Grade 7 Food Chains and Webs
When a hungry cheetah eats a zebra, the cheetah is acting as the
  1. predator.
  2. gatherer.
  3. mutant.
  4. prey.
Grade 7 Food Chains and Webs
A saprophyte is any organism that                                                .
  1. is helpful to a person externally.
  2. is harmful to a person internally.
  3. can be seen only on a microscopic level.
  4. uses dead material as a food and energy source.
Grade 7 Communities, Populations, and Ecosystems
If two species occupy the same niche, one of the species might eventually die off because of
  1. mutualism.
  2. environmental loss.
  3. competition.
  4. natural selection.
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