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5 Written questions

5 Matching questions

  1. three types of dispersion
  2. character displacement
  3. nitrogen-fixing bacteria
  4. Without decomposers...
  5. examples of abiotic factors
  1. a temp, water, sunlight, wind, rocks, soil
  2. b organism change PHENOTYPES in order to decrease competition
  3. c free N₂ --> NH₄⁺
    nitrogen to ammonium ions
  4. d the plants would die, therefore no life because decomposers put nutrients back into the soil.
  5. e clumped, random spacing, uniform pattern

5 Multiple choice questions

  1. food
  2. predation, parasitism, severe competition, end of resources, too much poisonous waste
  3. poor nutrition comparing with land
  4. decomposed organic matter of dead plants/animals
  5. energy from gross primary productivity - energy used for respiration

5 True/False questions

  1. clumpedlargest biome --- 3/4 of Earth
    most stable b/c temp vary little
    provides most of Earth's food and oxygen
    subdivided into regions based on amount of sunlight received, distance from shore, water depth, open water/ocean bottom


  2. parasitismboth organisms benefit (+/+)


  3. size of a population# of individuals per unit area/volume


  4. competitive exclusion principal2 species cannot coexist in a community if they compete for the same resources in a shared niche


  5. dispersionpattern of spacing of individuals within an area.