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6. 'When the parasite benefits from the host, with there being neutral effects on the host'.

  • commensalism
  • mutualism
  • parasitism
  • phoresis

7. 'When an organism is the first to inhabit an area or exploit a particular resource, it competitively excludes others from doing the same'.

  • preemption competition
  • competitive release
  • overgrowth competition
  • encounter competition

8. 'An organism can expand it's niche in response to removal of a competitor, or through invasion into new areas'.

  • Disruptive selection
  • Competitive release
  • Territorial competition
  • Realised niche

9. 'The non-territorial exclusion of an organism from an area e.g. scavengers fighting over a carcass'.

  • Consumption competition
  • Encounter competition
  • Preemption competition
  • Territorial competition

10. 'When resources are shared more evenly by all organisms in a population, resulting in reduced fitness for all individuals.'

  • Self-thinning rule
  • Scramble competition
  • Contest competition
  • Exploitation

11. Gause's law of competitive exclusion states that....

  • A competing species will always exclude another from the same habitat.
  • Two species living in the same area will have reduced fitness due to competition.
  • two species with the the same ecological niche cannot survive coexist in an area.
  • A species which experiences high intraspecific competition will not survive.