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5 Written questions

5 Matching questions

  1. Anaerobic respiration
  2. Producers
  3. Hydrosphere
  4. Chemosynthesis
  5. Pyramid of energy flow
  1. a Organisms that produce their own food
  2. b The use of inorganic molecules other than oxygen to accept electrons at the "downhill" end of electron transport chains.
  3. c Diagram representing the flow of energy through each trophic level in a food chain or food web. With each energy transfer, only a small part (typically 10%) of the usable energy entering one trophic level is transferred to the organisms at the next trophic level. Compare pyramid of biomass, pyramid of numbers.
  4. d Process in which certain organisms (mostly specialized bacteria) extract inorganic compounds from their environment and convert them into organic nutrient compounds without the presence of sunlight. Compare photosynthesis.
  5. e The earth's liquid water (oceans, lakes, other bodies of surface water, and underground water), frozen water (polar ice caps, floating ice caps, and ice in soil, known as permafrost), and water vapor in the atmosphere. See also hydrologic cycle.

5 Multiple choice questions

  1. Organisms that rely on other organisms for their energy and food supply
  2. Cyclic movement of sulfur in different chemical forms from the environment to organisms and then back to the environment.
  3. An animal or plant with organs that function together to maintain life; a living thing; anything that resembles a living thing in structure or function
  4. Organisms that obtain energy by eating only plants
  5. The carnivores in an ecosystem; organisms that feed on primary consumers

5 True/False questions

  1. StratosphereThe lowest layer of the atmosphere, in which temperature drops at a constant rate as altitude increases; the part of the atmosphere where weather conditions exist

          

  2. Tertiary consumersAnimals that feed on animal-eating animals. They feed at high trophic levels in food chains and webs. Examples are hawks, lions, bass, and sharks. Compare detritivore, primary consumer, secondary consumer.

          

  3. PopulationA catabolic process that makes a limited amount of ATP from glucose without an electron transport chain and that produces a characteristic end product, such as ethyl alcohol or lactic acid.

          

  4. Nutrient (biogeochemical) cyclesThe pathways by which chemicals circulate through ecosystems that involve both living (biotic) and nonliving (geological) components.

          

  5. Phosphorus cycleCyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment

          

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