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