Chapter 3| Student Practice Quizzes | Environmental Change and Challenge, Third Edition

Instructions: For each question, click on the radio button beside your answer. When you have completed the entire quiz, click the Submit my answers button at the bottom of the page to receive your results.

Question 1:

The term ‘tree line’ is used to describe a sharp line between vegetation communities dominated by trees and other types of vegetation such as herbs and grasses.
a) True
b) False

Question 2:

Which of the following is not an important ecologically social implication of fire?
a) it contributes to short-term biological diversity
b) it favours growth of certain species over others
c) it changes soil temperatures that influence chemical and biological properties
d) it stimulates growth of various grasses and herbs that provide fodder for herbivores
e) it reduces populations of omnivores that might otherwise exhaust herbivore populations

Question 3:

The Eurasian water milfoil is:
a) an invasive species of fish found in British Columbia
b) an invasive species of weed found in British Columbia
c) an endangered species of water fowl found in British Columbia
d) a tourist attraction in aquariums in British Columbia
e) none of the above
f) all of the above

Question 4:

Tropical sites are considered to have the best ecosystem attributes for forestry growth.
a) True
b) False

Question 5:

Dutch elm disease:
a) was transmitted between trees by beetles
b) has killed 80 per cent of elm trees in Quebec
c) has altered landscapes across Canada
d) has been eradicated by a natural toxin called mansonone
e) all of the above

Question 6:

Which phrase best describes a synergistic relationship?
a) negative feedback
b) one cancels out the other
c) the sum is greater than the parts
d) too much of a good thing
e) none of the above

Question 7:

What do the muskox and codfish have in common?
a) they have a low birth rate
b) they are K-strategists
c) they have relatively stable populations
d) they belong to the same food chain
e) none of the above

Question 8:

The polar bear is an example of:
a) an herbivore
b) a primary producer
c) speciation
d) r-strategist
e) all of the above

Question 9:

Bacteria is the most stable presence in the fossil record because:
a) simple life forms are the most successful life forms
b) they are adaptable, indestructible, and diverse
c) they have sizable populations
d) they occupy a wide domain of environments
e) all of the above

Question 10:

Including flora, fauna, and micro-organisms, it is estimated that Canada has:
a) over 11,000 species
b) over 31,000 species
c) over 51,000 species
d) over 71,000 species
e) over 100,000 species

Question 11:

Endemic species are:
a) found nowhere else on earth
b) found only in Canada
c) commonly found
d) easy to identify

Question 12:

The Canadian government has made significant progress on the Canadian Biodiversity Strategy in the past ten years.
a) True
b) False

Question 13:

The Burgess Shale is:
a) a region of extensive fossil beds on Mount Wapta
b) one of the most important scientific sites in the world
c) a significant find of fossils from the Cambrian erac. a significant find of fossils from the Cambrian era
d) all of the above

Question 14:

The serpentine bedrock on Table Mountain is an example of:
a) eutrophication
b) complex climate
c) an edaphic climax
d) secondary succession

Question 15:

Inertia is the same as resilience.
a) True
b) False

Higher Education

Environmental Change and Challenge, Third Edition - Chapter 3