Chapter 47: Q 11. (page 1400)
What is an ecosystem service that performs the same function as a pesticide?
a. pollination
b. secondary plant compounds
c. crop diversity
d. predators of pests
The correct option is (d)
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Describe two considerations in conservation preserve design
With an extinction rate of 100 E/MSY and an estimated 10
million species, how many extinctions are expected to
occur in a century?
a. 100
b. 10,000
c. 100,000
d. 1,000,000
A secondary plant compound might be used for which of
the following?
a. a new crop variety
b. a new drug
c. a soil nutrient
d. a pest of a crop pest
Describe the two methods used to calculate
contemporary extinction rates.
Which of the following statements is not
supported by this graph?
a. There are more vulnerable fishes than critically
endangered and endangered fishes combined.
b. There are more critically endangered amphibians
than vulnerable, endangered and critically
endangered reptiles combined.
c. Within each group, there are more critically
endangered species than vulnerable species.
d. A greater percentage of bird species are critically
endangered than mollusk species.
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