5 Written Questions

1. physical area in which an organism lives
2. heterotroph that preys on other heterotrophs
3. process in which nitrogen gas is captured and converted into a form plants can use
4. organism that captures energy from sunlight or inorganic substances to produce its own food; also called a producer
5. each step in a food chain or food web

5 Matching Questions

1. parasitism
2. niche
3. commensalism
4. biome
5. biotic factor

1. a role, or position, of an organism in its environment
2. b any living factor in an organism's environment
3. c symbiotic relationship in which one organism benefits and the other organism is neither helped nor harmed
4. d symbiotic relationship in which one organism benefits at the expense of another organism
5. e large group of ecosystems that share the same climate and have similar types of communities

5 Multiple Choice Questions

1. anything that takes up space and has mass
   1. biome
   2. matter
   3. niche
   4. habitat
2. symbiotic relationship in which both organisms benefit
   1. population
   2. matter
   3. mutualism
   4. commensalism
3. all the interacting populations of different species that live in the same geographic location at the same time
   1. biogeochemical cycle
   2. abiotic factor
   3. biological community
   4. biotic factor
4. heterotroph that decomposes organic material and returns the nutrients to soil, air, and water, making the nutrients available to other organisms
   1. omnivore
   2. carnivore
   3. herbivore
   4. detritivore
5. biological community and all the nonliving factors that affect it
   1. biome
   2. ecosystem
   3. food web
   4. ecology

5 True/False Questions

1. biogeochemical cycle → relatively thin layer of Earth and its atmosphere that supports life

   True        False

2. symbiosis → total mass of living matter at each trophic level

   True        False

3. abiotic factor → any living factor in an organism's environment

   True        False

4. food chain → simplified model that shows a single path for energy flow through an ecosystem

   True        False

5. omnivore → heterotroph that preys on other heterotrophs

   True        False