Test Bank for Ecology: The Economy of Nature 9th Edition by Rick Relyea
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Course
Ecology
Institution
Ecology
Test bank for Ecology: The Economy of Nature 9e 9th Edition by Rick Relyea. ISBN-13: 5542
Full Chapters test bank included
Chapter 1 An Introduction to Ecology
1.1 Ecological Systems Exist in A Hierarchy of Organization
Individuals
Populations
Communities
Ecosystems
The Landscape
The B...
Indicate the answer choice that best completes the statement or answers the question.
1. A mixotroph is an organism that
a. consumes dead organic matter.
b. can be both a parasite and a predator.
c. survives only because of a symbiotic relationship.
d. can use multiple methods to obtain energy.
2. Which type of interaction between species results in positive outcomes for both species?
a. Commensalism
b. Mutualism
c. Herbivory
d. Heterotrophism
3. The range of biotic and abiotic conditions a species can tolerate is its
a. community.
b. habitat.
c. niche.
d. ecosystem role.
4. A phenotype is
a. the traits an individual can pass on to its offspring.
b. the expression of an individual’s traits.
c. the genes an individual possesses.
d. a trait caused by interaction with another species.
5. Fishermen living along the North Pacific Rim felt threatened by increased populations of sea otters because
sea otters consume commercially valuable abalone, sea urchins, and spiny lobster. What beneficial aspect of
sea otter ecology did these fishermen ignore?
a. Sea otters are consumed by killer whales, which would otherwise eat commercially valuable fish.
b. Sea otters catch and eat trash fish, allowing stocks of commercially valuable fish to increase.
c. Sea otters catch and eat sea urchins, thereby protecting kelps, which in turn shelter populations of
larval fish.
d. Sea otters have been used in medical research to develop vaccines that protect domestic cats from a
variety of diseases.
6. Most scientific investigations begin with a set of facts about nature. These facts are obtained by
a. observation and description.
b. development of mathematical models.
c. development of hypotheses.
d. experimental testing of hypotheses.
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