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2 Written questions

2 Multiple choice questions

  1. an interaction between organisms of different species in which one type of organism benefits and the other type is neither helped nor harmed to any great degree
  2. a random change in DNA molecules making up genes that can alter anatomy, physiology, or behaviors in off-spring

2 True/False questions

  1. nitrogen fixationconversion by lightening, bacteria, and cyanobacteria of atmospheric nitrogen gas into forms useful to plants - it is part of the nitrogen cycle


  2. detrivoresconsumer organism that feeds on parts of dead organisms and wastes of living organisms