Biology (Raven), 10th Edition

Chapter 56: Community Ecology

Pre-Test

1
Select the statement that is NOT true concerning communities.
A)The term refers to the species that live in any particular locality.
B)Interactions among members of a community govern many ecological and evolutionary processes.
C)Communities involve only one species.
D)Communities change over space and time.
E)Biological studies of communities focus on all levels, from subsets of species to entire communities.
2
A _____ is the total of all the ways a species uses environmental resources.
A)community
B)niche
C)ecotone
D)serpentine soils
E)No choice is correct.
3
Which of these is NOT true of predation?
A)Predation is the consuming of one organism by another.
B)Predation does not include an animal eating a plant.
C)Coevolution occurs between plants and herbivores.
D)A coevolutionary "arms race" can ensue from predator and prey adapting to the other.
E)Predation strongly influences prey populations.
4
Which of these species interactions is incorrect?
A)Symbiosis involves long-term interactions.
B)Mutualism is mutually harmful to both species.
C)Parasitism benefits one species at the expense of the another.
D)Commensalism benefits one species and is neutral to the other.
E)Ecological processes have interactive effects.
5
True of false: Disturbances can play an important role in structuring communities.
A)true
B)false
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