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Ecology Questions - All Grades

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Grade 9 Biogeochemical Cycles
The recycling of chemical elements throughout an ecosystem is
  1. energy.
  2. a trophic level.
  3. the phosphorus cycle.
  4. the biogeochemical cycle.
Grade 9 Biogeochemical Cycles
Grade 9 Food Chains and Webs
What is the ultimate source of energy in any food chain?
  1. the sun
  2. producers
  3. consumers
  4. decomposers
Grade 9 Biotic and Abiotic
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Grade 9 Symbiosis
Which term does NOT refer to a type of symbiotic relationship?
  1. commensalism
  2. mutualism
  3. parasitism
  4. predation
Grade 9 Communities, Populations, and Ecosystems
Which situation is a good example of a limiting factor in an ecosystem?
  1. an ecosystem with little to no rain
  2. an organism with no natural predators
  3. an ecosystem with an abundance of nutrients
  4. an ecosystem with plenty of space for population growth
Grade 9 Biogeochemical Cycles
Grade 9 Food Chains and Webs
Which statement describes an autotroph?
  1. It is an organism that makes its own food.
  2. It is an organism that eats other organisms.
  3. It is an organism that eats decaying matter.
  4. None of the above.
Grade 9 Biomes
An area with its own unique geography and climate is a
  1. biome.
  2. continent.
  3. latitude.
  4. mass.
Grade 9 Biogeochemical Cycles
Where are all the elements found?
  1. in ecology
  2. in the biosphere
  3. in biochemical pathways
  4. in the biogeochemical cycles
Grade 9 Biogeochemical Cycles
Which is not one of the four biogeochemical cycles?
  1. carbon
  2. nitrogen
  3. oxygen
  4. phosphorus
Grade 9 Biomes
Which biome has a layer of permafrost?
  1. desert
  2. prairie
  3. savanna
  4. tundra
Grade 9 Food Chains and Webs
Grade 9 Food Chains and Webs
What is a producer?
  1. any organism
  2. any organism that obtains energy
  3. any organism that obtains energy from other life forms
  4. any organism that produces its own food
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Biogeochemical Cycles
Which biogeochemical cycle does the diagram represent?
Carbon Cycle With Text Labels
  1. carbon cycle
  2. water cycle
  3. nitrogen cycle
  4. phosphorus cycle
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