Exam 44: Population Ecology
Exam 1: Invitation to Biology80 Questions
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Exam 40: Maintaining the Internal Environment73 Questions
Exam 41: Animal Reproductive Systems105 Questions
Exam 42: Animal Development69 Questions
Exam 43: Animal Behavior74 Questions
Exam 44: Population Ecology59 Questions
Exam 45: Community Ecology71 Questions
Exam 46: Ecosystems63 Questions
Exam 47: The Biosphere72 Questions
Exam 48: Human Impacts on the Biosphere62 Questions
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All EXCEPT which one of the following are the reasons for the rapid population explosion of humans?
(Multiple Choice)
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Classification.Respond to the following statements with reference to the five terms listed below, which are used by ecologists.
a.carrying capacity
b.net reproduction per individual per unit time
c.age structure
d.survivorship
e.growth rate
-This is the birth rate minus the death rate times the population size assuming balanced immigration and emigration.
(Essay)
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Classification.Respond to the following statements with reference to the five terms listed below, which are used by ecologists.
a.carrying capacity
b.net reproduction per individual per unit time
c.age structure
d.survivorship
e.growth rate
-The number of individuals in each of several age categories is this.
(Essay)
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The distribution of animals and plants in competition for scarce resources is likely to be
(Multiple Choice)
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The following questions refer to the age structure diagrams above.
-A declining population is indicated by
(Multiple Choice)
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Immigration and __________ permanently affect population size, but __________ does not.
(Essay)
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It took more than 100,000 years for the human population to grow to one billion individuals and took about ____ years to add five billion more.
(Multiple Choice)
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The following questions refer to the figure above illustrating logistic growth.
-The effect of population growth limiting factors begin to become evident at about
(Multiple Choice)
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Classification.Respond to the following statements with reference to the five terms listed below, which are used by ecologists.
a.carrying capacity
b.net reproduction per individual per unit time
c.age structure
d.survivorship
e.growth rate
-A change in the available food supply in a habitat will affect all of these except this.
(Essay)
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At low population density, __________ is favored, quickly producing as many offspring as possible.
(Essay)
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Is the average ecological footprint getting larger or smaller globally?
(Essay)
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The distribution of strawberry plants in a strawberry field is
(Multiple Choice)
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In cases of __________ growth, a population's growth is proportional to its size.
(Essay)
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-The animal in the above photograph was adversely affected by ____ and is making a comeback thanks to ____.
(Multiple Choice)
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A study of a cohort of 1,000 animals showed a 90 percent death rate per individual in the first year, 10 percent the second year, and 5 percent the third year.This population's survivorship is
(Multiple Choice)
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The number of individuals in a specified portion of habitat is the population's
(Multiple Choice)
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