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5 Written questions

4 Multiple choice questions

  1. the total mass of living matter in a given unit area
  2. An autotroph, usually a photosynthetic organism. Collectively, autotrophs make up the trophic level of an ecosystem that ultimately supports all other levels.
  3. only 10% of the energy contained in a particular trophic level is available for transfer to the next trophic level
  4. gets food from secondary consumers. also called third level consumers.

4 True/False questions

  1. Primary consumerconsumer that feeds directly on producers


  2. Herbivorea flesh-eating animal


  3. trophic levelstep in a food chain, food web, or ecological pyramid


  4. Decomposerorganism that obtains energy by eating only plants