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5 Written questions

5 Matching questions

  1. Secondary consumers
  2. Aerobic respiration
  3. Ecology
  4. Tertiary consumers
  5. Primary consumers
  1. a Animals 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.
  2. b The carnivores in an ecosystem; organisms that feed on primary consumers
  3. c The process in which pyruvic acid is broken down and NADH is used to make a large amount of ATP; the part of respiration that is carried out in the presence of oxygen.
  4. d The study of how living things interact with each other and their environment
  5. e Organisms that are unable to produce their own energy. They must eat producers to obtain energy. Also called: consumers.

5 Multiple choice questions

  1. A group of individuals of the same species that live together in the same area at the same time
  2. A measure of the total dry mass of organisms within a particular region
  3. 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.
  4. Nonliving; specifically, the nonliving components of an ecosystem, such as temperature, humidity, the mineral content of the soil, etc.
  5. 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.

5 True/False questions

  1. Biogeochemical cyclesThe elements and compounds that make up nutrients move continually through air, water, soil, rock and living organisms in ecosystems and in the biosphere

          

  2. HerbivoresOrganisms that eat other animals for energy

          

  3. Natural greenhouse effectAnticipated increase in Earth's temperature, caused by carbon dioxide (emitted by burning fossil fuels) trapping some of the radiation emitted by the surface.

          

  4. Carbon cycleCyclic movement of sulfur in different chemical forms from the environment to organisms and then back to the environment.

          

  5. DetritivoresCommonly digest decomposers that live on, and in, detritus particles, which they chew and grind into even smaller pieces.

          

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