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Environmental Change and Challenge, Third Edition - Chapter 3

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:


a) True
b) False

Question 2:


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:


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:


a) True
b) False

Question 5:


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:


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:


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:


a) an herbivore
b) a primary producer
c) speciation
d) r-strategist
e) all of the above

Question 9:


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:


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:


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

Question 12:


a) True
b) False

Question 13:


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:


a) eutrophication
b) complex climate
c) an edaphic climax
d) secondary succession

Question 15:


a) True
b) False