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environmental science
  • 1. a process by which carbon is cycled through the atmosphere
A) decomposer
B) cellular respiration
C) consumer
D) carbon cycle
E) carbon
  • 2. breaking down food to yield energy
A) consumer
B) food web
C) decomposer
D) food chain
E) cellular respiration
  • 3. a final and stable community
A) climax community
B) secondary succession
C) Trophic level
D) producer
E) primary succession
  • 4. organisms that get their energy by eating other organisms
A) producer
B) consumer
C) food chain
D) photosynthesis
E) decomposer
  • 5. dead organisms
A) producer
B) food web
C) decomposer
D) primary succession
E) consumer
  • 6. a gradual process of change and replacement types of species in a community
A) secondary succession
B) photosynthesis
C) nitrogen cycle
D) Ecological Succession
E) pioneer species
  • 7. a sequence in which energy is transferred from one organism to the next
A) food chain
B) consumer
C) food cycle
D) food web
E) decompser
  • 8. many feeding relationships that are possible in an ecosystem
A) food web
B) food structure
C) food chain
D) food link
E) food cycle
  • 9. A process in which nitrogen is cycled through the atmosphere and through land and also organisms
A) phosphorus cycle
B) nitrogen producer
C) nitrogen
D) oxygen cycle
E) nitrogen cycle
  • 10. the movement of phosphorus from the environment to organisms and back to the environment
A) pioneer species
B) trophic level
C) primary succession
D) phosphorus cycle
E) nitrogen cycle
  • 11. energy from the sun enters the ecosystem when a plant uses that sunlight to make sugar molecules
A) producer
B) none of the above
C) consumer
D) A and B only
E) photosynthesis
  • 12. the first organisms to colonize any newly available area and begin ecological succession
A) pioneer species
B) none of the above
C) primary succession
D) B and D only
E) trophic level
  • 13. a type of succession that occurs on a surface where no ecosystem existed before
A) primary succession
B) none of the above
C) A and D only
D) secondary succession
E) third succession
  • 14. an organism that makes it's own food
A) C and D only
B) none of the above
C) producer
D) photosynthesis
E) food chain
  • 15. more common type occurs on a surface where an ecosystem has existed before
A) second succession
B) none of the above
C) primary succession
D) third succession
E) secondary succession
  • 16. each step in the transfer of energy through a food chain or food web in an ecosystem
A) Trophic level
B) consumer
C) cellular respiration
D) none of the above
E) producer
  • 17. organisms that can fix atmospheric nitrogen into chemical compounds are a few bacteria species
A) fixing bacteria
B) nitrogen
C) Nitrogen fixing bacteria
D) nitrogen fixing
E) none of the above
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