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Seventh Grade (Grade 7) Ecology Questions

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Grade 7 Food Chains and Webs
In an energy pyramid, which level has the most available energy?
  1. producer
  2. 1st-level consumer
  3. 2nd-level consumer
  4. 3rd-level consumer
Grade 7 Succession
What are the two types of ecological succession?
  1. primary and secondary
  2. abiotic and biotic
  3. plant and animal
  4. erosion and deposition
Grade 7 Symbiosis
When a tick lives on a dog, the symbiosis can be described as what?
  1. mutualism, with the tick and the dog as co-hosts.
  2. predation, with the tick as predator and the dog as prey.
  3. parasitism, with the dog as parasite and the tick as host.
  4. parasitism, with the dog as host and the tick as parasite.
Grade 7 Food Chains and Webs
The first organism in a food chain is always a                .
  1. consumer.
  2. producer.
  3. carnivore.
  4. herbivore.
Grade 7 Food Chains and Webs
Animals that eat the bodies of already-dead animals are
  1. herbivores.
  2. scavengers.
  3. prey.
  4. predators.
Grade 7 Biotic and Abiotic
Abiotic factors are the
  1. non-living parts of an ecosystem.
  2. living organisms of an ecosystem.
Grade 7 Communities, Populations, and Ecosystems
What is the study of how living things interact with each other?
  1. zoology
  2. habitatism
  3. ecology
  4. eco-studies
Grade 7 Symbiosis
A bird living in a tree with a pre-existing hole is a great example of
  1. parasitism.
  2. mutualism.
  3. commensalism.
  4. decomposition.
Grade 7 Communities, Populations, and Ecosystems
The study of large-scale interactions in natural communities is
  1. genetics.
  2. ecology.
  3. biology.
Grade 7 Biogeochemical Cycles
Which two cycles depend on photosynthesis for part of the recycling process?
  1. carbon and oxygen
  2. water and nitrogen
  3. water and oxygen
  4. carbon and nitrogen
Grade 7 Communities, Populations, and Ecosystems
What is a limiting factor?
  1. any part of the living environment that influences whether or not an organism survives
  2. any part of the living and nonliving environment that influences whether or not an organism survives
  3. any part of the nonliving environment that influences whether or not an organism survives
  4. a mountain, ocean, river, or other landform that blocks an organism from moving to another ecosystem
Grade 7 Food Chains and Webs
How do animals obtain the carbon used in cellular processes?
  1. breathing in carbon dioxide
  2. eating plants or other animals
  3. photosynthesis
  4. carbon fixation
Grade 7 Biogeochemical Cycles
Through which process do living organisms release carbon into the atmosphere?
  1. photosynthesis
  2. cellular respiration
  3. transpiration
  4. combustion
Grade 7 Biotic and Abiotic
Why is a dead tree still considered as a biotic factor in the ecosystem?
  1. It gives fertilizer.
  2. It once lived.
  3. It makes work easier.
  4. It provides shade to living things.
Grade 7 Biogeochemical Cycles
Which is NOT a way that carbon cycles through the biosphere?
  1. photosynthesis
  2. transpiration
  3. combustion of fossil fuels
  4. decomposition
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