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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. evolution in which two or more species interact and exert selective pressures on each other that can lead to each species to undergo adaptions

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. mutationa random change in DNA molecules making up genes that can alter anatomy, physiology, or behaviors in off-spring