A) producer
B) organism
C) consumer
D) individual
- 2. One single organism. For example, one bear:
A) producer
B) individual
C) community
D) population
- 3. All the individuals of one kind (one species) in a specified area at one time. For example, ten fish.
A) population
B) food pyramid
C) ecosystem
D) community
- 4. All the living interacting populations in a specified area. For example, bear and fish:
A) food web
B) population
C) community
D) ecosystem
- 5. A system of interacting organisms and nonliving factors in a specified area. For example, bear, fish and a stream:
A) ecosystem
B) food chain
C) population
D) community
- 6. Living organisms and products of organisms:
A) community
B) biotic
C) abiotic
D) ecosystem
- 7. Nonliving (rocks, water):
A) community
B) ecosystem
C) biotic
D) abiotic
- 8. A sequence of organisms that eat one another in an ecosystem (algae --> fish --> bird):
A) food pyramid
B) food web
C) food chain
D) community
- 9. All the feeding relationships in an ecosystem:
A) food chain
B) food web
C) ecosystem
D) food pyramid
- 10. A kind of trophic-level diagram in the shape of a triangle in which the largest layer at the base is the producers with the first-level, second-level, and third-level consumers in the layers above:
A) food pyramid
B) food chain
C) food web
D) ecosystem
- 11. An organism that is able to produce its own food through photosynthesis:
A) decomposer
B) consumer
C) producer
D) carnivore
- 12. An organism that eats other organisms:
A) population
B) autotroph
C) consumer
D) producer
- 13. The first level of consumers:
A) primary consumers
B) producer
C) detrivore
D) secondary consumers
- 14. The second level of consumers:
A) primary consumers
B) secondary consumers
C) detrivore
D) producer
- 15. An organism that consumes parts of dead organisms and transfers all of the biomass into simple chemicals:
A) producer
B) carnivore
C) decomposer
D) herbivore
- 16. An organism that make its own food:
A) primary consumers
B) carnivore
C) secondary consumers
D) autotroph
- 17. An organism that cannot make its own food and must eat other organisms:
A) population
B) heterotroph
C) autotroph
D) herbivore
- 18. The process by which producers make energy-rich molecules (food) from water and carbon dioxide in the presence of light:
A) biomass
B) detritus
C) photosynthesis
D) trophic levels
- 19. Functional role in a feeding relationship through which energy flows (i.e., producer, consumer, decomposer):
A) detritus
B) trophic levels
C) biomass
D) herbivore
- 20. The total organic matter in an ecosystem:
A) photosynthesis
B) food chain
C) biomass
D) herbivore
- 21. Small parts of organic material:
A) herbivore
B) photosynthesis
C) food chain
D) detritus
- 22. An organism that eats detritus, breaking the organic material into smaller parts that a decomposer could use for food:
A) detrivore
B) photosynthesis
C) herbivore
D) food chain
- 23. An organism that eats only meat:
A) carnivore
B) herbivore
C) detrivore
D) omnivore
- 24. An organism that eats only plants:
A) carnivore
B) omnivore
C) herbivore
D) detrivore
- 25. A consumer that eat both plants and animals:
A) herbivore
B) carnivore
C) detrivore
D) omnivore
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