1 SEM CARDLESS ACC W/RAVEN TEXT
12th Edition
ISBN: 9781265321062
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 58, Problem 1A
Historically, island species have tended to become extinct faster than species living on a mainland. Which of the following reasons can be used to explain this phenomenon?
a. Island species have often evolved in the absence of predators and have no natural avoidance strategies.
b. Humans have introduced diseases and competitors to islands, which negatively affect island populations.
c. Island populations are usually smaller than mainland populations.
d. All of the choices are correct.
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Students have asked these similar questions
Spatial scales are interconnected in a hierarchical way. Whitman looked at invertebrate communities on subtidal rock walls to examine the relationship between local and regional species richness. His studies demonstrated that
A.
local, not regional, processes determine local community species diversity
B.
local species richness levels off at high regional species richness levels
C.
local species richness is determined largely, but not completely, by regional species pools
D.
local processes are unimportant in determine local community species diversity
E.
There was no relationship between local and regional species richness
The best argument for how an unprotected species can evolve to mimic a second protected species (distasteful or noxious) and thus obtain protection is by
A. Random changes in the appearance of the unprotected species that lead to increased fitness due to greater similarity with the protected species
B. Individuals deciding that they need protection and mutating to look like the protected species
C. Individuals changing their diet to increase pigment production to look like the protected species
D. Natural selection for more advanced traits that are better to the inferior traits of organisms that do not look like the protected species
E. Behavioral modification of the unprotected species to act like the protected species
Arguments in favor of the overkill hypothesis of megafauna extinctions are
a.
Basically everywhere humans colonized, big animals went extinct
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Climate change similar to the end of the Pleistocene happened many times before, and there was no megafauna extinction
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In nearly all the Clovis kill sites in North America, mammoth or other megafauna are present
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Chapter 58 Solutions
1 SEM CARDLESS ACC W/RAVEN TEXT
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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