Chapter 47: Q 10. (page 1400)
Pollination is an example of ________.
a. a possible source of new drugs
b. chemical diversity
c. an ecosystem service
d. crop pest control
The correct option is (c).
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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
An adaptive radiation is________.
a. a burst of speciation
b. a healthy level of UV radiation
c. a hypothesized cause of a mass extinction
d. evidence of an asteroid impact
Which two extinction risks may be a direct result of the
pet trade?
a. climate change and exotic species introduction
b. habitat loss and overharvesting
c. overharvesting and exotic species introduction
d. habitat loss and climate change
Converting a prairie to a farm field is an example of
________.
a. overharvesting
b. habitat loss
c. exotic species
d. climate change
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
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