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5 Written questions

5 Matching questions

  1. secondary succession
  2. symbiotic relationships
  3. richness
  4. parasitism
  5. niche
  1. a The simple count of number of species in an area.
  2. b A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact
  3. c 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)
  4. d An ecological relationship between organisms of two different species that live together in direct contact
  5. e The "job" a species plays in a community, e.g. small seed consumer, top predator.

5 Multiple choice questions

  1. 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
  2. A symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed
  3. Transition in the species composition of a biological community, often following ecological disturbance of the community; the establishment of a biological community in an area virtually barren of life
  4. A defense where one species is selected to look like another species which has an effective defense.
  5. All the organisms that inhabit a particular area; an assemblage of populations of different species living close enough together for potential interaction

5 True/False questions

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

          

  2. primary successionA type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact

          

  3. competitive exclusionThe 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

          

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

          

  5. coevolutionAn interaction between species in which one species, the predator, eats the other, the prey