Ecology & Lichens Questions Question 1 1 / 1 ... amazonaws com
& Lichens Questions on 1
1 / 1 point
Many studies have shown the relationship between lichen communities and... Question options:
a) Invasive insect populations b) Water contaminants c) Nitrogen and sulphur-based air pollutants d) All of the above Question 2
1 / 1 point
Which of the following statements are true about lichen metabolism? Question options:
a)
they derive carbon via photosynthesis
b)
they absorb pollutants from the air
c)
they obtain nutrients by dissolving the surface of their host
d)
A & B only
e)
B & C only A, B, & C
f) Question 3
1 / 1 point
The lichen community method determines... Question options:
a)
The presence of macrolichen species on rocks
b)
The abundance of macrolichen species in water
c)
The abundance of macrolichen species on all standing woody plants
d)
All of the above
Question 4
1 / 1 point
All of the following are observations that support the hypothesis that global warming is affecting the earth's organisms, except: Question options:
a)
the overall abundance of copepods in the North Atlantic is declining
b)
The Baptista leucantha plant produces flowers about 10 days earlier now than it did 60 years ago
c)
warmer waters around coral reefs have caused corals to expel thier algae and starve as a consequence
d)
frog-killing fungi that thrive in warmer temperatures are increasing in abundance
e)
alleles present in hot-weather-habitat drosophila are increasing in frequency in the drosophila residing other, cooler areas
Question 5
1 / 1 point
Which of the following statements are true about lichens? Question options:
a)
lichens are a unique type of organism that constitute their own distinct kingdom
b)
lichens colonize many inhospitable surfaces and grow rapidly
c)
lichens are relatively rare, existing only in extreme environments such as the Arctic and Antarctic
d)
lichens are highly susceptible to pollutants because they obtain nutrients from rainfall and the air
e)
the presence of lichens may be indicative of a polluted environment
Question 6
1 / 1 point
You observe that, following a long period of warm local conditions, a particular ocean region has far less species richness than observed many years prior. Based on your knowlege of temperature stratification in the ocean, which of the following is a reasonable hypothesis for why these observations are so:
Question options:
a)
the surface waters of the ocean are warmer now and are inhospitable to the nutrient dense organisms that reside in the benthic zone
b)
the surface waters have become so warm that they are unlikely to mix with the cooler, denser waters of the nutrient-rich benthic zone
c)
the deeper benthic waters mix with much warmer surface waters at greater frequency than before, elevating the overall temperature of the water and changing the ecological niche of the benthic organisms
d)
A and B only
e)
all of the above contribute to the reduced species richness
Question 7
1 / 1 point
Why is the long scale monitoring program of lichen communities in the Netherlands outstanding? Question options:
a)
Its length of record
b)
Its fine spatial resolution of the sampling grid
c)
Its analyses of trends in the lichen communities in response to air pollutants
d)
All of the above
Question 8
1 / 1 point
Which one of the requirements for the long-term monitoring program has the lichen part of the Forest Health Monitoring program fulfilled? Question options:
a) Repeatable field method b) Collaboration among many scientists
c) Collaboration and repeatable field method d) None Question 9
1 / 1 point
Which of the following observations are not stated to be consequences of global warming? Question options:
a)
there is an observed trend toward increased terrestrial productivity
b)
there is an observed trend toward decreased terrestrial productivity
c)
there is an observed trend toward decreased marine productivity
d)
allele frequencies have shifted in response to changing environmental temperatures
e)
predatory behaviours in certain organisms have changed in response to changing environmental temperatures
Question 10
1 / 1 point
Epiphytic lichen communities were included in the Forest Health Monitoring program because… Question options:
a) They inform us about ecosystem contaminants b) They tell us about the tree species found in the ecosystem c) The inform us about ecosystem biodiversity d) A and C
1 / 1 point
Many studies have shown the relationship between lichen communities and... Question options:
a) Invasive insect populations b) Water contaminants c) Nitrogen and sulphur-based air pollutants d) All of the above Question 2
1 / 1 point
Which of the following statements are true about lichen metabolism? Question options:
a)
they derive carbon via photosynthesis
b)
they absorb pollutants from the air
c)
they obtain nutrients by dissolving the surface of their host
d)
A & B only
e)
B & C only A, B, & C
f) Question 3
1 / 1 point
The lichen community method determines... Question options:
a)
The presence of macrolichen species on rocks
b)
The abundance of macrolichen species in water
c)
The abundance of macrolichen species on all standing woody plants
d)
All of the above
Question 4
1 / 1 point
All of the following are observations that support the hypothesis that global warming is affecting the earth's organisms, except: Question options:
a)
the overall abundance of copepods in the North Atlantic is declining
b)
The Baptista leucantha plant produces flowers about 10 days earlier now than it did 60 years ago
c)
warmer waters around coral reefs have caused corals to expel thier algae and starve as a consequence
d)
frog-killing fungi that thrive in warmer temperatures are increasing in abundance
e)
alleles present in hot-weather-habitat drosophila are increasing in frequency in the drosophila residing other, cooler areas
Question 5
1 / 1 point
Which of the following statements are true about lichens? Question options:
a)
lichens are a unique type of organism that constitute their own distinct kingdom
b)
lichens colonize many inhospitable surfaces and grow rapidly
c)
lichens are relatively rare, existing only in extreme environments such as the Arctic and Antarctic
d)
lichens are highly susceptible to pollutants because they obtain nutrients from rainfall and the air
e)
the presence of lichens may be indicative of a polluted environment
Question 6
1 / 1 point
You observe that, following a long period of warm local conditions, a particular ocean region has far less species richness than observed many years prior. Based on your knowlege of temperature stratification in the ocean, which of the following is a reasonable hypothesis for why these observations are so:
Question options:
a)
the surface waters of the ocean are warmer now and are inhospitable to the nutrient dense organisms that reside in the benthic zone
b)
the surface waters have become so warm that they are unlikely to mix with the cooler, denser waters of the nutrient-rich benthic zone
c)
the deeper benthic waters mix with much warmer surface waters at greater frequency than before, elevating the overall temperature of the water and changing the ecological niche of the benthic organisms
d)
A and B only
e)
all of the above contribute to the reduced species richness
Question 7
1 / 1 point
Why is the long scale monitoring program of lichen communities in the Netherlands outstanding? Question options:
a)
Its length of record
b)
Its fine spatial resolution of the sampling grid
c)
Its analyses of trends in the lichen communities in response to air pollutants
d)
All of the above
Question 8
1 / 1 point
Which one of the requirements for the long-term monitoring program has the lichen part of the Forest Health Monitoring program fulfilled? Question options:
a) Repeatable field method b) Collaboration among many scientists
c) Collaboration and repeatable field method d) None Question 9
1 / 1 point
Which of the following observations are not stated to be consequences of global warming? Question options:
a)
there is an observed trend toward increased terrestrial productivity
b)
there is an observed trend toward decreased terrestrial productivity
c)
there is an observed trend toward decreased marine productivity
d)
allele frequencies have shifted in response to changing environmental temperatures
e)
predatory behaviours in certain organisms have changed in response to changing environmental temperatures
Question 10
1 / 1 point
Epiphytic lichen communities were included in the Forest Health Monitoring program because… Question options:
a) They inform us about ecosystem contaminants b) They tell us about the tree species found in the ecosystem c) The inform us about ecosystem biodiversity d) A and C
