Question 1

What is happening when one organism gets its nutrients from another-harming it but not killing it right away?

Accepted Answer

A)  Competition 
B)  Predation 
C)  Amensalism 
D)  Parasitism 
E)  Mutualism 
A)  Competition 
B)  Predation 
C)  Amensalism 
D)  Parasitism 
E)  Mutualism D

Question 2

When organisms eat, most biomass is digested and turned into energy. Certain compounds are stored in the body. These can be essential minerals and/or toxins. This process is called

Accepted Answer

A)  trophic leveling. 
B)  biomagnification. 
C)  bioacummulation. 
D)  biomass. 
E)  biodiversity. 
A)  trophic leveling. 
B)  biomagnification. 
C)  bioacummulation. 
D)  biomass. 
E)  biodiversity. C

Question 3

Rose thorns are an example of

Accepted Answer

A)  predation pressure. 
B)  a response to parasitism. 
C)  bioaccumulation. 
D)  selective pressure as a predator. 
E)  abiotic competition. 
A)  predation pressure. 
B)  a response to parasitism. 
C)  bioaccumulation. 
D)  selective pressure as a predator. 
E)  abiotic competition. A

Question 4

Which term best explains the following example: a spider builds a web and waits for an insect to become trapped in the web.

Accepted Answer

A)  Predation 
B)  Parasitism 
C)  Competition 
D)  Amensalism 
E)  Commensalism 
A)  Predation 
B)  Parasitism 
C)  Competition 
D)  Amensalism 
E)  Commensalism

Question 5

An interaction between organisms or species in which the fitness of one is lowered by the presence of another is referred to as

Accepted Answer

A)  commensalism. 
B)  parasitism. 
C)  predation. 
D)  amensalism. 
E)  competition. 
A)  commensalism. 
B)  parasitism. 
C)  predation. 
D)  amensalism. 
E)  competition.

Question 6

When one organism consumes another it is called

Accepted Answer

A)  competition. 
B)  parasitism. 
C)  predation. 
D)  amensalism. 
E)  commensalism. 
A)  competition. 
B)  parasitism. 
C)  predation. 
D)  amensalism. 
E)  commensalism.

Question 7

Non-native species can increase in population and become pests to an ecosystem. Which of the following reasons best describes why this can happen?

Accepted Answer

A)  Non-native species do not always have natural predators. 
B)  Non-native species may not have natural parasites that control their populations. 
C)  There may not be any local competitors for the non-native species. 
D)  Both a and b 
E)  All of the above 
A)  Non-native species do not always have natural predators. 
B)  Non-native species may not have natural parasites that control their populations. 
C)  There may not be any local competitors for the non-native species. 
D)  Both a and b 
E)  All of the above

Question 8

In the diagram below, each circle represents the niche of each species.
  
-Suppose the overlapping area gradually becomes much larger. What is most likely happening?

Accepted Answer

A)  Amensalism 
B)  Parasitism of species A on species B 
C)  Competitive exclusion principle 
D)  Commensalism 
E)  Predation of species B by species A 
A)  Amensalism 
B)  Parasitism of species A on species B 
C)  Competitive exclusion principle 
D)  Commensalism 
E)  Predation of species B by species A

Question 9

What is the best interpretation of the image below?
  (Source: http://conservationreport.com/tag/bioaccumulation/)

Accepted Answer

A)  A food web of fish and humans 
B)  Biomagnification of Hg (mercury) 
C)  Bioaccumulation of water around the organisms 
D)  Used by evolutionary biologists to show how humans evolved 
E)  The symbiotic relationships between the organisms using Hg and arrows 
A)  A food web of fish and humans 
B)  Biomagnification of Hg (mercury) 
C)  Bioaccumulation of water around the organisms 
D)  Used by evolutionary biologists to show how humans evolved 
E)  The symbiotic relationships between the organisms using Hg and arrows

Question 10

Compare and contrast predation and competition.

Accepted Answer

Predation is when one organism

Question 11

Which of the following terms best describes an interconnected network of who eats whom in an ecosystem?

Accepted Answer

A)  Food web 
B)  Tropic levels 
C)  Food chain 
D)  Biomass pyramid 
E)  Biomagnification chart 
A)  Food web 
B)  Tropic levels 
C)  Food chain 
D)  Biomass pyramid 
E)  Biomagnification chart

Question 12

What is the second greatest threat to biodiversity?

Accepted Answer

A)  Habitat destruction 
B)  Mutualism of cleaner-customers 
C)  Parasitism of ectoparasites 
D)  Invasion of non-native species 
E)  Evolution due to selective pressure 
A)  Habitat destruction 
B)  Mutualism of cleaner-customers 
C)  Parasitism of ectoparasites 
D)  Invasion of non-native species 
E)  Evolution due to selective pressure

Question 13

Identify the similarities and differences between commensalism and amensalism.

Accepted Answer

In a commensalistic relationship, one or

Question 14

Differentiate between endoparasitism and ectoparasitism.

Accepted Answer

Endoparasites rely on their host for nut

Question 15

Explain the difference between phytoplankton and zooplankton and where they fit on a food web.

Accepted Answer

Phytoplankton are autotrophs or producer

Question 16

The sun provides energy for ecosystems by supplying the energy for producers to generate their own food through photosynthesis. This energy can then be transferred through food webs. In this example, the sun is

Accepted Answer

A)  a biotic resource. 
B)  an abiotic resource. 
C)  an unlimited resource. 
D)  the highest trophic level. 
E)  Both a and c 
A)  a biotic resource. 
B)  an abiotic resource. 
C)  an unlimited resource. 
D)  the highest trophic level. 
E)  Both a and c

Question 17

In a forest where white pine trees grow close to each other, some may get fewer resources such as light, water, and nutrients. Some trees may evolve to grow faster and taller or have a larger root system due to selective pressure. What can you conclude about these trees?

Accepted Answer

A)  They are an example of interspecific competition. 
B)  They are an example of intraspecific competition. 
C)  They will all grow well after some adapt. 
D)  They are an example of the competitive exclusion principle. 
E)  Both b and d 
A)  They are an example of interspecific competition. 
B)  They are an example of intraspecific competition. 
C)  They will all grow well after some adapt. 
D)  They are an example of the competitive exclusion principle. 
E)  Both b and d

Question 18

When one organism feeds on ectoparasites or dead tissue of another organism the relationship is considered to be

Accepted Answer

A)  endoparasitism, since one organism eats other parasites. 
B)  ectoparasitism, since the ectoparasites are eaten. 
C)  cleaner-customer mutualism, since one organism gains food and the other has harmful material removed. 
D)  amensalism, since one organism, the ectoparasite, is negatively affected. 
E)  bioaccumulation, since one organism is accumulating biomass. 
A)  endoparasitism, since one organism eats other parasites. 
B)  ectoparasitism, since the ectoparasites are eaten. 
C)  cleaner-customer mutualism, since one organism gains food and the other has harmful material removed. 
D)  amensalism, since one organism, the ectoparasite, is negatively affected. 
E)  bioaccumulation, since one organism is accumulating biomass.

Question 19

Intraspecific and interspecific competition

Accepted Answer

A)  never occurs at the same time. 
B)  always occurs at the same time. 
C)  can occur at the same time. 
D)  can occur at the same time when only abiotic resources are needed. 
E)  only occurs when mammals are involved. 
A)  never occurs at the same time. 
B)  always occurs at the same time. 
C)  can occur at the same time. 
D)  can occur at the same time when only abiotic resources are needed. 
E)  only occurs when mammals are involved.

Question 20

The ecological role of an organism in a community especially in regard to food consumption is called its

Accepted Answer

A)  niche. 
B)  habitat. 
C)  trophic level. 
D)  biomass. 
E)  ecosystem. 
A)  niche. 
B)  habitat. 
C)  trophic level. 
D)  biomass. 
E)  ecosystem.

What is happening when one organism gets its nutrients from another-harming it but not killing it right away?

When organisms eat, most biomass is digested and turned into energy. Certain compounds are stored in the body. These can be essential minerals and/or toxins. This process is called

Rose thorns are an example of

Which term best explains the following example: a spider builds a web and waits for an insect to become trapped in the web.

An interaction between organisms or species in which the fitness of one is lowered by the presence of another is referred to as

When one organism consumes another it is called

Non-native species can increase in population and become pests to an ecosystem. Which of the following reasons best describes why this can happen?

In the diagram below, each circle represents the niche of each species. -Suppose the overlapping area gradually becomes much larger. What is most likely happening?

What is the best interpretation of the image below? (Source: http://conservationreport.com/tag/bioaccumulation/)

Compare and contrast predation and competition.

Which of the following terms best describes an interconnected network of who eats whom in an ecosystem?

What is the second greatest threat to biodiversity?

Identify the similarities and differences between commensalism and amensalism.

Differentiate between endoparasitism and ectoparasitism.

Explain the difference between phytoplankton and zooplankton and where they fit on a food web.

The sun provides energy for ecosystems by supplying the energy for producers to generate their own food through photosynthesis. This energy can then be transferred through food webs. In this example, the sun is

In a forest where white pine trees grow close to each other, some may get fewer resources such as light, water, and nutrients. Some trees may evolve to grow faster and taller or have a larger root system due to selective pressure. What can you conclude about these trees?

When one organism feeds on ectoparasites or dead tissue of another organism the relationship is considered to be

Intraspecific and interspecific competition

The ecological role of an organism in a community especially in regard to food consumption is called its

The Scientific Method

Risk and Uncertainty

Biodiversity

Evolutionary Responses

Human Population Dynamics

Endangered Species

Natural Resource Use and Planning

Energy Resources

Water Resources

Waste Management

Atmosphere and Climate

Air Pollution

Policy, Ethics, and Decision-Making

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Exam 7: Interactions Among Species

What is happening when one organism gets its nutrients from another-harming it but not killing it right away?

When organisms eat, most biomass is digested and turned into energy. Certain compounds are stored in the body. These can be essential minerals and/or toxins. This process is called

Rose thorns are an example of

Which term best explains the following example: a spider builds a web and waits for an insect to become trapped in the web.

An interaction between organisms or species in which the fitness of one is lowered by the presence of another is referred to as

When one organism consumes another it is called

Non-native species can increase in population and become pests to an ecosystem. Which of the following reasons best describes why this can happen?

In the diagram below, each circle represents the niche of each species. -Suppose the overlapping area gradually becomes much larger. What is most likely happening?

What is the best interpretation of the image below? (Source: http://conservationreport.com/tag/bioaccumulation/)

Compare and contrast predation and competition.

Which of the following terms best describes an interconnected network of who eats whom in an ecosystem?

What is the second greatest threat to biodiversity?

Identify the similarities and differences between commensalism and amensalism.

Differentiate between endoparasitism and ectoparasitism.

Explain the difference between phytoplankton and zooplankton and where they fit on a food web.

The sun provides energy for ecosystems by supplying the energy for producers to generate their own food through photosynthesis. This energy can then be transferred through food webs. In this example, the sun is

In a forest where white pine trees grow close to each other, some may get fewer resources such as light, water, and nutrients. Some trees may evolve to grow faster and taller or have a larger root system due to selective pressure. What can you conclude about these trees?

When one organism feeds on ectoparasites or dead tissue of another organism the relationship is considered to be

Intraspecific and interspecific competition

The ecological role of an organism in a community especially in regard to food consumption is called its

The Scientific Method

Risk and Uncertainty

Biodiversity

Evolutionary Responses

Human Population Dynamics

Endangered Species

Natural Resource Use and Planning

Energy Resources

Water Resources

Waste Management

Atmosphere and Climate

Air Pollution

Policy, Ethics, and Decision-Making

Filters