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Seventh Grade (Grade 7) Ecology Questions

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Grade 7 Food Chains and Webs
Which statement best describes how consumers get the food they need to survive?
  1. They use energy from the sun to make food from water and carbon dioxide.
  2. They obtain energy and food from the chemicals in their environment.
  3. They eat other organisms.
  4. They break down the nutrients in dead organisms or animal wastes.
Grade 7 Succession
Secondary succession occurs when                                          .
  1. everything is dead
  2. everything is living and how it should be
  3. there is little but still some plant life
  4. the environment is gone to extinction
Grade 7 Food Chains and Webs
A(n)                   is a series of overlapping food chains that exist in an ecosystem.
  1. ingestion order
  2. food maze
  3. natural selection
  4. food web
Grade 7 Communities, Populations, and Ecosystems
All the organisms of one species in an ecosystem is a(n)
  1. individual.
  2. population.
  3. community.
  4. environment.
Grade 7 Food Chains and Webs
What are consumers that eat both plants and animals?
  1. omnivores
  2. herbivores
  3. carnivores
  4. scavengers
Grade 7 Communities, Populations, and Ecosystems
The specific space that an organism lives and thrives within an ecosystem is known as its
  1. community.
  2. biome.
  3. biosphere.
  4. niche.
Grade 7 Communities, Populations, and Ecosystems
The place where an organism lives is its
  1. home.
  2. habitat.
  3. community.
  4. ecosystem.
Grade 7 Biogeochemical Cycles
Lightning and soil bacteria are both involved in the production of                  .
  1. nitrates
  2. potassium
  3. phosphates
  4. none of the above
Grade 7 Biomes
Which biome has the least amount of precipitation?
  1. grassland
  2. rainforest
  3. desert
  4. deciduous forest
Grade 7 Succession
What occurs during ecological succession?
  1. loss of only plants from an ecosystem
  2. gain of snow in an environment
  3. loss and gain of plants and animals in an environment
  4. the gain of only animals in an environment
Grade 7 Food Chains and Webs
Which statement best describes how decomposers get the food they need to survive?
  1. They eat other organisms.
  2. They obtain energy and food from the chemicals in their environment.
  3. They use energy from the sun to make food from water and carbon dioxide.
  4. They break down the nutrients in dead organisms or animal wastes.
Grade 7 Communities, Populations, and Ecosystems
The place that an organism lives is its
  1. habitat.
  2. science.
  3. niche.
  4. house.
Grade 7 Ecology
Lichen is a combination of what two organisms?
  1. algae and bacteria
  2. bacteria and fungi
  3. fungi and algae
  4. fungi and protist
Grade 7 Food Chains and Webs
All plants are
  1. producers.
  2. decomposers.
  3. consumers.
  4. b and c
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