BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 58, Problem 4A
The introduction of a nonnative predator to an ecosystem could cause extinction by
a. causing a top-down trophic cascade (see Chapter 57).
b. outcompeting a native carnivore (see Chapter 56).
c. transmitting parasites to which the native species are not adapted.
d. All of the choices are correct.
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The elimination of predators by humans
a. will cause its prey to experience exponential growth until new predators arrive or evolve.
b. will lead to an increase in the carrying capacity of the environment.
c. may increase the population size of a prey species if that prey’s population was being regulated by predation from the predator.
d. will lead to an Allee effect.
In a simple food chain, a frog eats insects, and a snake eats the frog. The primary role of the frog in the food chain is _____________________.
a) to be a source of energy
b) to find a space to live
c) to start a new species
d) to make an ecosystem
A food web:
A. Is made by a food spider
B. Shows how feeding relationships are interlinked
C. Shows the number of organisms in a habitat
D. Only shows important animals
Chapter 58 Solutions
BIOLOGY
Ch. 58.1 - Describe the history of extinction through time.Ch. 58.1 - Prob. 2LOCh. 58.2 - Prob. 1LOCh. 58.2 - Prob. 2LOCh. 58.3 - Prob. 1LOCh. 58.3 - Explain how these causes can interact to bring...Ch. 58.4 - Prob. 1LOCh. 58.4 - Describe the potential roles of natural selection...Ch. 58.4 - Prob. 3LOCh. 58.5 - Prob. 1LO
Ch. 58.5 - Prob. 2LOCh. 58.5 - Prob. 3LOCh. 58 - If we assume that population density is a good...Ch. 58 - Prob. 2DACh. 58 - Would the extinction rate increase if an area were...Ch. 58 - Prob. 4DACh. 58 - Why do population density and growth rates differ...Ch. 58 - Why might whale populations fail to recover once...Ch. 58 - Why do small populations lose genetic variation?Ch. 58 - Prob. 1UCh. 58 - The economic value of indirect ecosystem services...Ch. 58 - The amphibian decline is best described as a....Ch. 58 - Prob. 4UCh. 58 - When populations are drastically reduced in size,...Ch. 58 - A captive-breeding program followed by release to...Ch. 58 - Historically, island species have tended to become...Ch. 58 - Ninety-nine percent of all the species that ever...Ch. 58 - To effectively address the biodiversity crisis,...Ch. 58 - The introduction of a nonnative predator to an...Ch. 58 - If 99% of the species that ever existed are now...Ch. 58 - Prob. 2SCh. 58 - Prob. 3SCh. 58 - Prob. 4SCh. 58 - Prob. 5S
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