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5 Written questions

5 Matching questions

  1. pathogens
  2. ecological succession
  3. coevolution
  4. mimicry
  5. mutualism
  1. a 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
  2. b A symbiotic relationship in which both participants benefit
  3. c a disease causing organism
  4. d A defense where one species is selected to look like another species which has an effective defense.
  5. e The mutual influence on the evolution of two different species interacting with each other and reciprocally influencing each other's adaptations

5 Multiple choice questions

  1. A mathematical measure of how the total number of individuals in an area are divided among the number of species in an area. In even communities, most species have about the same number of individuals present, where in uneven communities almost all individuals present belong to one species.
  2. A type of ecological succession that occurs in a virtually lifeless area, where there were originally no organisms and where soil has not yet formed
  3. 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
  4. 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)
  5. A symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed

5 True/False questions

  1. symbiotic relationshipsAn interaction between species in which one species, the predator, eats the other, the prey

          

  2. richnessThe "job" a species plays in a community, e.g. small seed consumer, top predator.

          

  3. biodiversityA defense where one species is selected to look like another species which has an effective defense.

          

  4. predationAn interaction between species in which one species, the predator, eats the other, the prey

          

  5. communitiesA symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed

          

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