Chapter 53: Community Ecology
 
Activities Quiz
 

Activities Quiz


1 .       A human eats a deer. Which of these terms applies to the relationship between the human and the deer? (Activity: Interspecific Interactions) 

 predation
 competition
 parasitism
 commensalism
 mutualism


2 .       Humans and sharks both eat fish. Which of these terms applies to the relationship between the human and the shark? (Activity: Interspecific Interactions) 

 predation
 competition
 parasitism
 commensalism
 mutualism


3 .       Humans who have pets tend to be healthier than humans who do not have pets. Which of these terms applies to the relationship between a human and a pet? (Activity: Interspecific Interactions) 

 predation
 competition
 parasitism
 commensalism
 mutualism


4 .       Which of these terms applies to the relationship between a dog and a blood-sucking tick? (Activity: Interspecific Interactions) 

 predation
 competition
 parasitism
 commensalism
 mutualism


5 .       An egret eats insects stirred up by grazing animals. Which of these terms applies to the relationship between the egret and the grazing animal? (Activity: Interspecific Interactions) 

 predation
 competition
 parasitism
 commensalism
 mutualism


6 .       In an ecosystem, phytoplankton are _____. (Activity: Food Webs) 

 producers
 primary consumers
 secondary consumers
 tertiary consumers
 detritivores


7 .       An earthworm that feeds on the remains of plants and animals is acting as a _____. (Activity: Food Webs) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore


8 .       When a human eats a steak, the human is acting as a _____. (Activity: Food Webs) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore


9 .       A cow eating grass is an example of a _____. (Activity: Food Webs) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore


10 .       A human who just ate a hamburger is eaten by a shark while swimming. The shark is acting as a _____. (Activity: Food Webs) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore


11 .       Which of these is a starting point for primary succession? (Activity: Primary Succession) 

 a surface exposed by a retreating glacier
 abandoned farmland
 an abandoned city
 a neglected yard
 none of these is a starting point for primary succession


12 .       According to island biogeography, what is the relationship between an island's distance from the mainland and the number of species present on the island? (Activity: Exploring Island Biogeography) 

 The closer an island is to the mainland, the fewer the number of species found on the island.
 The farther an island is from the mainland, the larger the number of species found on the island.
 The farther an island is from the mainland, the fewer the number of species found on the island.
 The closer an island is to the mainland, the fewer the number of species found on the island; and the farther an island is from the mainland, the larger the number of species found on the island.
 There is no relationship between the distance from the mainland and the number of species found on an island.


13 .       Why is a new island more hospitable to colonizers than an older island is? (Activity: Exploring Island Biogeography) 

 Competition is more intense on the newer island.
 Predation is less of a factor on older islands.
 The extinction rate is higher on the newer island.
 Competition is less intense on the newer island.
 The intensity of both competition and predation is less on the newer island.


14 .       What is the relationship between colonizing success and the number of species already established on an island? (Activity: Exploring Island Biogeography) 

 As the number of established species on an island decreases, colonizing success also decreases.
 There is no relationship between the number of established species on an island and colonizing success.
 As the number of established species on an island increases, colonizing success also decreases.
 As the number of established species on an island increases, colonizing success also increases.
 As the number of established species on an island decreases, colonizing success also decreases; and as the number of established species on an island increases, colonizing success also increases.


15 .       The number of species on an island remains relatively constant when _____. (Activity: Exploring Island Biogeography) 

 the rate of successful colonization is less than the extinction rate
 the rate of successful colonization equals the extinction rate
 the rate of successful colonization is greater than the extinction rate
 species richness increases
 none of these occur







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