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5 Written questions

5 Matching questions

  1. primary succession
  2. mutualism
  3. herbivory
  4. predation
  5. parasitism
  1. a 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
  2. b consumption of plants
  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 interaction between species in which one species, the predator, eats the other, the prey
  5. e A symbiotic relationship in which both participants benefit

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

          

  2. symbiotic relationshipsAn ecological relationship between organisms of two different species that live together in direct contact

          

  3. disturbanceA symbiotic relationship in which both participants benefit

          

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

          

  5. 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