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5 Written Questions

5 Matching Questions

  1. disturbance
  2. parasitism
  3. communities
  4. resource partitioning
  5. secondary succession
  1. a The division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species
  2. b A symbiotic relationship in which the symbiont (parasite) benefits at the expense of the host by living either within the host (as an endoparasite) or outside the host (as an ectoparasite)
  3. c All the organisms that inhabit a particular area; an assemblage of populations of different species living close enough together for potential interaction
  4. d A force that changes a biological community and usually removes organisms from it. Disturbances, such as fire and storms, play pivotal roles in structuring many biological communities
  5. e A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact

5 Multiple Choice Questions

  1. The mutual influence on the evolution of two different species interacting with each other and reciprocally influencing each other's adaptations
  2. The concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently and have a reproductive advantage that will eventually lead to the elimination of the other population
  3. An interaction between species in which one species, the predator, eats the other, the prey
  4. The "job" a species plays in a community, e.g. small seed consumer, top predator.
  5. Species that are not usually abundant in a community yet exert strong control on community structure by the nature of their ecological roles or niches

5 True/False Questions

  1. pathogensa disease causing organism


  2. mutualismA symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed


  3. evennessThe simple count of number of species in an area.


  4. richnessThe simple count of number of species in an area.


  5. primary successionA type of ecological succession that occurs in a virtually lifeless area, where there were originally no organisms and where soil has not yet formed


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