Question 1

A heavy load of parasites is termed a(n)________.

Accepted Answer

infection

Question 2

A heavy load of parasites is called a(n)

Accepted Answer

A) infection. 
B) disease. 
C) macroparasitism. 
D) parasitoidism. 
A) infection. 
B) disease. 
C) macroparasitism. 
D) parasitoidism. A

Question 3

In a mutualistic relationship between two species, both species benefit.

Accepted Answer

A) True 
 B)False  True

Question 4

Symbiosis is an interaction between two species that is beneficial to both species.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is likely to be the first response of an animal host to a new parasite?

Accepted Answer

A) formation of a cyst 
B) allelopathy 
C) inflammatory response 
D) immune response 
A) formation of a cyst 
B) allelopathy 
C) inflammatory response 
D) immune response

Question 6

An outbreak of canine distemper occurred in Toronto in 2010. Briefly explain why this may have happened and what the outcome was.

Accepted Answer

Unnaturally high densities of

Question 7

When a foreign object, such as a virus or bacterium, enters the bloodstream, it elicits a(n)________ response.

Accepted Answer

The answer of When a foreign object, such as a...

Question 8

After infection occurs, the first line of defence by a host against invasion of a parasite is an inflammatory response.

Accepted Answer

A) True 
 B)False

Question 9

Nectar is often produced by plants as an enticement or reward for pollinating animals.

Accepted Answer

A) True 
 B)False

Question 10

Discuss the potential benefits of pollination between a plant and a pollinator.

Accepted Answer

Pollination between a plant and a pollin

Question 11

Whitebark pine rust can reduce the number of Clark's nutcrackers in a given habitat.

Accepted Answer

A) True 
 B)False

Question 12

The number of parasites per individual is relatively high in most individuals and low in a few individuals.

Accepted Answer

A) True 
 B)False

Question 13

Nitrogen is important in the mutualism between legume plants and Rhizobium bacteria.

Accepted Answer

A) True 
 B)False

Question 14

In a commensalistic relationship between two species, both species benefit.

Accepted Answer

A) True 
 B)False

Question 15

Direct transmission of a parasite involves an intermediate organism known as a vector.

Accepted Answer

A) True 
 B)False

Question 16

When infected by a parasite, an animal typically

Accepted Answer

A) grows more rapidly than a healthy individual. 
B) produces fewer offspring than a healthy individual. 
C) behaves less conspicuously than a healthy individual. 
D) is less likely to be preyed on than a healthy individual. 
A) grows more rapidly than a healthy individual. 
B) produces fewer offspring than a healthy individual. 
C) behaves less conspicuously than a healthy individual. 
D) is less likely to be preyed on than a healthy individual.

Question 17

A relationship between two species in which one species benefits and the other is not significantly affected is called ________.

Accepted Answer

The answer of A relationship between two species in which...

Question 18

Which of the following symbiotic mutualisms involves a fungus?

Accepted Answer

A) lichens 
B) legume-Rhizobium interactions 
C) corals and zooxanthellae 
D) gut microbe-ruminant interactions 
A) lichens 
B) legume-Rhizobium interactions 
C) corals and zooxanthellae 
D) gut microbe-ruminant interactions

Question 19

Discuss the difference between mutualism and commensalism.

Accepted Answer

Mutualism and commensalism are both type

Question 20

Briefly outline the relationship between whitebark pine blister rust and the dispersal and regeneration of whitebark pine trees.

Accepted Answer

Clark's nutcrackers cache whitebark pine

Exam 15: Parasitism and Mutualism

A heavy load of parasites is termed a(n)________.

A heavy load of parasites is called a(n)

In a mutualistic relationship between two species, both species benefit.

Symbiosis is an interaction between two species that is beneficial to both species.

Which of the following is likely to be the first response of an animal host to a new parasite?

An outbreak of canine distemper occurred in Toronto in 2010. Briefly explain why this may have happened and what the outcome was.

When a foreign object, such as a virus or bacterium, enters the bloodstream, it elicits a(n)________ response.

After infection occurs, the first line of defence by a host against invasion of a parasite is an inflammatory response.

Nectar is often produced by plants as an enticement or reward for pollinating animals.

Discuss the potential benefits of pollination between a plant and a pollinator.

Whitebark pine rust can reduce the number of Clark's nutcrackers in a given habitat.

The number of parasites per individual is relatively high in most individuals and low in a few individuals.

Nitrogen is important in the mutualism between legume plants and Rhizobium bacteria.

In a commensalistic relationship between two species, both species benefit.

Direct transmission of a parasite involves an intermediate organism known as a vector.

When infected by a parasite, an animal typically

A relationship between two species in which one species benefits and the other is not significantly affected is called ________.

Which of the following symbiotic mutualisms involves a fungus?

Discuss the difference between mutualism and commensalism.

Briefly outline the relationship between whitebark pine blister rust and the dispersal and regeneration of whitebark pine trees.

The Nature of Ecology

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Ecological Genetics: Adaptation and Natural Selection

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Life History Patterns

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Population Growth

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Metapopulations

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Predation

Community Structure

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Systems Ecology

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Decomposition and Nutrient Cycling

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