BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Chapter 59, Problem 10TY
Summary Introduction
Introduction: Invasive species are those alien species which inhabit or occupy a new habitat and affect the lifestyle of existing population of that particular habitat.
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Which of the following species is not an invasive species in Ireland?
a.
Fuschia (Fuchsia magellanica)
b.
Giant rhubarb (Gunnera tinctoria)
c.
Himalayan Balsam (Impatiens glandulifera)
d.
The giant hogweed (Heracleum mantegazzianum)
e.
The zebra mussel (Dreissena polymorpha)
All of the following may be important keystone species due to their roles as seed dispersers EXCEPT: :
a. bees
b. rats
c. bats
d. birds
e. agoutis
Thank you!
Which of the following best describes a keystone species?
a. An organism, whose introduction causes or is likely to cause environmental harm
b. An organism, who if removed, the entire ecosystem changes.
c. Can signal a change in the biological condition of a particular ecosystem and diagnose the health of that ecosystem
d. Can indirectly protect several other species in the same habitat
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- Which of the following does NOT describe an externality? A: A flower farm is located in a semi-urban part of town. The flowers attract pollinators that help nearby farms but also provoke allergies for some of the local residents. B: A cranberry farm releases acidic water into a nearby river that is an important habitat for many native species. C: A firm voluntarily adopts a new technology that reduces how much pollution it emits into the air, resulting in cleaner air for everyone. D: An industrial-scale farm uses high amounts of pesticides which reduces the farm’s ability to produce food over the longer term.arrow_forwardWhich of the following would BEST help conserve biodiversity. CHOOSE ONLY ONE a. Plant native trees b. Engage in aquaculture c. Backyard farmingarrow_forwardIn a coevolutionary arms race, after a plant evolves a novel chemical defense against an herbivore, a the plant can be expected to outcompete all other plants in the same environment. b the herbivore can be expected to evolve resistance to the plant's defense. c the herbivore can be expected to disperse to new habitats. d the herbivore can be expected to go extinct. e the plant can be expected to colonize new habitats.arrow_forward
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