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5 Written questions

5 Matching questions

  1. disturbance
  2. mutualism
  3. predation
  4. niche
  5. communities
  1. a The "job" a species plays in a community, e.g. small seed consumer, top predator.
  2. b A symbiotic relationship in which both participants benefit
  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 An interaction between species in which one species, the predator, eats the other, the prey
  5. e 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 Multiple choice questions

  1. A defense where one species is selected to look like another species which has an effective defense.
  2. A symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed
  3. consumption of plants
  4. The mutual influence on the evolution of two different species interacting with each other and reciprocally influencing each other's adaptations
  5. 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

5 True/False questions

  1. ecological successionTransition 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. competitive exclusionThe mutual influence on the evolution of two different species interacting with each other and reciprocally influencing each other's adaptations

          

  3. keystone speciesA 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.

          

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

          

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