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Chapter 4 Post-Lecture Quiz



This activity contains 25 questions.

Question 1
1
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If births equal 16, deaths equal 14, immigration equals 3, and emigration equals 6, what is the change in the population?
 
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Question 2
2
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Which of the following is an example of an r-strategist?
 
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Question 3
3
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When the number of organisms in a species falls to near the critical number, it is considered _______.
 
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Question 4
4
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Which of the following is an example of a K-strategist?
 
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Question 5
5
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Reproduction at a rate that maintains population size _______.
 
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Question 6
6
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If Type I species are K-strategists, Type III species are r-strategists, and Type II species are intermediate, which of the following is Type II?
 
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Question 7
7
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Which statement about J-shaped population growth curves is true?
 
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Question 8
8
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Which of the following best demonstrates a density-dependent limiting factor?
 
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Question 9
9
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Carrying capacity is _______.
 
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Question 10
10
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Which of the following best demonstrates a density-independent limiting factor?
 
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Question 11
11
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Which of the following best describes top-down regulation of a red squirrel population?
 
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Question 12
12
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Which of the following species is currently in the most danger of going extinct?
 
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Question 13
13
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Two white-footed mice vying for the same seed to eat exemplifies _______.
 
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Question 14
14
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Which of the following relationships demonstrates commensalism?
 
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Question 15
15
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Which of the following relationships demonstrates mutualism?
 
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Question 16
16
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Which of the following categories includes all of the others?
 
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Question 17
17
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"Survival of the fittest" means that _______.
 
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Question 18
18
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When sea otters were overhunted in the Pacific Ocean, kelp forests were thrown out of balance. Thus, the sea otter is an example of _______________.
 
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Question 19
19
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Golden-winged and blue-winged warblers are considered separate species, but they can mate and produce viable hybrids. What does this indicate?
 
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Question 20
20
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According to the principle of natural selection, which of the following demonstrates adaptation?
 
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Question 21
21
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The six zoogeographic regions of the world can be attributed to _______.
 
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Question 22
22
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In a natural ecosystem, some species survive and reproduce more offspring than other species. As a result, subsequent generations of the reproducing species _______.
 
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Question 23
23
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House sparrows are not native to the United States and have caused many native bird populations to decrease. Thus, the house sparrow is considered a(n) ___________ species.
 
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Question 24
24
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Which of the following remedies for controlling a non-native species is the most complicated and potentially the most dangerous to an ecosystem?
 
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Question 25
25
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Which of the following statements regarding introduced species is true?
 
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