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