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5 Written questions

5 Matching questions

  1. resource partitioning
  2. biodiversity
  3. communities
  4. disturbance
  5. Island Biogeography theory
  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 All the organisms that inhabit a particular area; an assemblage of populations of different species living close enough together for potential interaction
  3. c All of the variety of life; usually refers to the variety of species that make up a community; concerns both species richness (the total number of different species) and the relative abundance of the different species
  4. d Predicts the relationship between species richess of a patch and that patch's area and distance to other patches
  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 type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact
  2. The "job" a species plays in a community, e.g. small seed consumer, top predator.
  3. a disease causing organism
  4. consumption of plants
  5. 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.

5 True/False questions

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


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


  3. commensalismA symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed


  4. keystone speciesSpecies 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. predationA 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)