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Lichen: Quiz


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Question 1: What does the following picture show?

  Crustose lichens on a wall
  Some lichens, like Lobaria pulmonaria, are sensitive to air pollution.
  Iwatake (Umbilicaria esculenta) gathering at Kumano in KishÅ« by Hiroshige II

Question 2: gelatinous lichens, in which the cyanobacteria produce a ________ that absorbs and retains water.

Question 3: There is evidence to suggest that the lichen symbiosis is ________ or commensalistic, rather than mutualistic (Ahmadjian 1993).
Dirofilaria immitisParasitismToxoplasmosisCat

Question 4: Lichen is used in ________[48] and other modeling hobbies as a material for making trees and shrubs.
Rail transport modellingH0 scaleScale modelRail transport modelling scales

Question 5: Among the ascolichens, ________ are produced in spore-producing bodies, the three most common spore body types are the apothecia, perithecia and the pycnidia.
SporeCell wallFernPlant

Question 6: Many lichens produce secondary compounds, including pigments that reduce harmful amounts of sunlight and powerful toxins that reduce ________ or kill bacteria.

Question 7: Two obstacles are often encountered when eating lichens: lichen ________ are generally indigestible to humans, and lichens usually contain mildly toxic secondary compounds that should be removed before eating.

Question 8: Lichens also sometimes contain structures made from fungal metabolites, for example crustose lichens sometimes have a ________ layer in the cortex.

Question 9: The processes by which atmospheric deposition occurs include ________ and dew, gaseous absorption, and dry deposition.
Cloud condensation nucleiFogMeteorologyCloud

Question 10: The ________ has discovered that lichens can survive unprotected in space.
Space RaceCNESItalian Space AgencyEuropean Space Agency


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