Question 1

Which of the following is an outcome of primary succession?

Accepted Answer

A)   Primary succession generally results in more simple, more self-sustaining stages than the preceding stages. 
B)   Primary succession often results in a keystone species stabilizing the environment so that it can thrive indefinitely. 
C)   Primary succession often leads to a more simple, unsustainable stage. 
D)   Primary succession often involves a species changing its environment such that it can no longer thrive and must be replaced by other species.

Question 2

Which term refers to the ability of an organism to return to its former condition after a period of stress?

Accepted Answer

A)   inertia 
B)   constancy 
C)   stability 
D)   resilience

Question 3

Which human-caused change might be considered a catastrophic change rather than a gradual change?

Accepted Answer

A)   compaction of the soil by continued exposure to heavy farm machinery 
B)   salinization of the soil though evaporation of water and deposition of salt 
C)   plowing of prairie soil to commence agriculture 
D)   human-caused changes associated with wind and water erosion

Question 4

A new kitten is added to a home with an established older cat.The older cat hisses and swats at the younger kitten in the kitchen where they are fed.Which term refers to the behaviour of the older cat?

Accepted Answer

A)   commensalism 
B)   predation 
C)   mutualism 
D)   competition

Question 5

Define Batesian mimicry.

Accepted Answer

an edible species th...

Question 6

Which term is defined as a relationship in which one species benefits while the other is neither helped nor harmed to any significant degree?

Accepted Answer

A)   competition 
B)   commensalism 
C)   parasitism 
D)   predation

Question 7

Which pair of terms applies to changes such as depletion of underground aquifers and water logging of irrigated soils?

Accepted Answer

A)   natural and gradual 
B)   human caused and catastrophic 
C)   human caused and gradual 
D)   natural and catastrophic

Question 8

Which statement is characteristic of an indicator species?

Accepted Answer

A)   It is very adaptable. 
B)   It eats a wide variety of food. 
C)   It is more likely to become extinct. 
D)   It tolerates a wide range of environments.

Question 9

How long does it take for natural processes to produce fertile soil?

Accepted Answer

A)   weeks to months 
B)   months to years 
C)   decades to a few centuries 
D)   several centuries to several thousands of years

Question 10

Which term describes the relationship between fire ant and native ant populations?

Accepted Answer

A)   mutualism 
B)   interspecific competition 
C)   commensalisms 
D)   intraspecific competition

Question 11

What is least likely to be included in ecosystem structure?

Accepted Answer

A)   species abundance 
B)   species diversity 
C)   secondary productivity 
D)   physical appearance

Question 12

Which term defines the relationship between redwood trees and redwood sorrel?

Accepted Answer

A)   commensalism 
B)   predation 
C)   parasitism 
D)   competition

Question 13

Which situation is the least likely death of a shark?

Accepted Answer

A)   It was eaten by an apex predator. 
B)   It provided food for humans. 
C)   It was attacked by a human bent on destroying the shark. 
D)   It was caught by a sport fisher.

Question 14

Which term defines the relationship between clownfish and sea anemones?

Accepted Answer

A)   parasitism 
B)   predation 
C)   competition 
D)   mutualism

Question 15

What habitat would have relatively little species biodiversity?

Accepted Answer

A)   a middle-latitude grassland 
B)   a low-latitude forest 
C)   the polar regions 
D)   a high-latitude forest

Question 16

Which pair of terms applies to changes such as drought and earthquakes?

Accepted Answer

A)   natural and catastrophic 
B)   human caused and catastrophic 
C)   natural and gradual 
D)   human caused and gradual

Question 17

Which of the following is NOT a mutualistic relationship?

Accepted Answer

A)   lichens 
B)   clownfish and sea anemones 
C)   epiphytes 
D)   mycorrhizal fungi and the roots of tree seedlings

Question 18

Which pair of human activities is likely to lead to the establishment of extremely low plant diversity?

Accepted Answer

A)   plantation forestry and ecosystem restoration 
B)   agriculture and plantation forestry 
C)   agriculture and ecosystem rehabilitation 
D)   agriculture and ecosystem restoration

Question 19

What explains how species can avoid or reduce interspecific competition?

Accepted Answer

A)   by eating at the same times 
B)   by foraging in close proximity to competing species 
C)   by specializing in different food items 
D)   by employing similar hunting tactics

Question 20

The relationship between a lion and a zebra is said to be a(n)___________________________________ relationship.

Accepted Answer

The answer of The relationship between a lion and a...

Exam 8: Community Ecology

Which of the following is NOT a mutualistic relationship?

Correct AnswerverifiedShow Answer

Which term is defined as a relationship in which one species benefits while the other is neither helped nor harmed to any significant degree?

Correct AnswerverifiedShow Answer

How long does it take for natural processes to produce fertile soil?

Correct AnswerverifiedShow Answer

Which of the following is an outcome of primary succession?

Correct AnswerverifiedShow Answer

Which human-caused change might be considered a catastrophic change rather than a gradual change?

Correct AnswerverifiedShow Answer

Which statement is characteristic of an indicator species?

Correct AnswerverifiedShow Answer

Which term describes the relationship between fire ant and native ant populations?

Correct AnswerverifiedShow Answer

Which pair of terms applies to changes such as drought and earthquakes?

Correct AnswerverifiedShow Answer

What habitat would have relatively little species biodiversity?

Correct AnswerverifiedShow Answer

Which term defines the relationship between clownfish and sea anemones?

Correct AnswerverifiedShow Answer

Which term refers to the ability of an organism to return to its former condition after a period of stress?

Correct AnswerverifiedShow Answer

Which term defines the relationship between redwood trees and redwood sorrel?

Correct AnswerverifiedShow Answer

Which situation is the least likely death of a shark?

Correct AnswerverifiedShow Answer

What explains how species can avoid or reduce interspecific competition?

Correct AnswerverifiedShow Answer

Define Batesian mimicry.

Correct Answerverifiedan edible species th...View AnswerShow Answer

What is least likely to be included in ecosystem structure?

Correct AnswerverifiedShow Answer

Which pair of terms applies to changes such as depletion of underground aquifers and water logging of irrigated soils?

Correct AnswerverifiedShow Answer

The relationship between a lion and a zebra is said to be a(n)___________________________________ relationship.

Correct AnswerverifiedShow Answer

Which pair of human activities is likely to lead to the establishment of extremely low plant diversity?

Correct AnswerverifiedShow Answer

A new kitten is added to a home with an established older cat.The older cat hisses and swats at the younger kitten in the kitchen where they are fed.Which term refers to the behaviour of the older cat?

Correct AnswerverifiedShow Answer

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an edible species th...
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