Question 1

The flavors of chocolate and vanilla come from

Accepted Answer

A)  Tannins 
B)  Terpenes 
C)  Lignins 
D)  Flavonoids 
E)  Alkaloids 
A)  Tannins 
B)  Terpenes 
C)  Lignins 
D)  Flavonoids 
E)  Alkaloids

Question 2

Which of the following examples shows a strong impact of herbivores on native vegetation?

Accepted Answer

A)  Beetles on klamath weed in California 
B)  Weevils on floating fern in New Guinea 
C)  Goats on Santa Catalina island 
D)  Moths on prickly pear in Australia 
E)  Toads on waterweeds in New Jersey 
A)  Beetles on klamath weed in California 
B)  Weevils on floating fern in New Guinea 
C)  Goats on Santa Catalina island 
D)  Moths on prickly pear in Australia 
E)  Toads on waterweeds in New Jersey

Question 3

In Australia, nearly 90% of cactus plants on islands with cattle have spines whereas on islands with no grazers, only about 20% of the pads possess them. This supports the idea of

Accepted Answer

A)  Plant apparency 
B)  Constitutive defenses 
C)  The optimal defense hypothesis 
D)  Induced defenses 
E)  The carbon-nitrogen balance hypothesis 
A)  Plant apparency 
B)  Constitutive defenses 
C)  The optimal defense hypothesis 
D)  Induced defenses 
E)  The carbon-nitrogen balance hypothesis

Question 4

Animal tissue generally contains about ____ times as much nitrogen as plant tissue, so high nitrogen plants are favored by herbivores.

Accepted Answer

A)  2 
B)  5 
C)  10 
D)  20 
E)  50 
A)  2 
B)  5 
C)  10 
D)  20 
E)  50

Question 5

Why don't we see more plant material eaten by herbivores?

Accepted Answer

A)  Herbivore populations self regulate 
B)  Natural enemies reduce herbivore densities 
C)  Plants have chemical and mechanical defenses 
D)  a and b 
E)  b and c 
A)  Herbivore populations self regulate 
B)  Natural enemies reduce herbivore densities 
C)  Plants have chemical and mechanical defenses 
D)  a and b 
E)  b and c

Question 6

Invertebrate grazers, such as grasshoppers, tend to have greater impacts on host plants than vertebrate grazers, such as bison.

Accepted Answer

A) True 
 B)False

Question 7

Unapparent plants

Accepted Answer

A)  Are large and difficult to find 
B)  Have qualitative defenses 
C)  Have defenses which guard against specialist herbivores 
D)  Often occur in monocultures 
E)  Are long lived 
A)  Are large and difficult to find 
B)  Have qualitative defenses 
C)  Have defenses which guard against specialist herbivores 
D)  Often occur in monocultures 
E)  Are long lived

Question 8

Organisms generally have to digest large amounts of plants containing phenolics to discourage them from feeding.

Accepted Answer

A) True 
 B)False

Question 9

Which type of food plant/algae is subject to the highest levels of herbivory by herbivores?

Accepted Answer

A)  Terrestrial plants 
B)  Aquatic plants 
C)  Aquatic algae 
D)  Terrestrial algae 
A)  Terrestrial plants 
B)  Aquatic plants 
C)  Aquatic algae 
D)  Terrestrial algae

The flavors of chocolate and vanilla come from

Which of the following examples shows a strong impact of herbivores on native vegetation?

In Australia, nearly 90% of cactus plants on islands with cattle have spines whereas on islands with no grazers, only about 20% of the pads possess them. This supports the idea of

Animal tissue generally contains about ____ times as much nitrogen as plant tissue, so high nitrogen plants are favored by herbivores.

Why don't we see more plant material eaten by herbivores?

Invertebrate grazers, such as grasshoppers, tend to have greater impacts on host plants than vertebrate grazers, such as bison.

Unapparent plants

Organisms generally have to digest large amounts of plants containing phenolics to discourage them from feeding.

Which type of food plant/algae is subject to the highest levels of herbivory by herbivores?

An Introduction to Ecology

Population Genetics

Natural Selection, Speciation, and Extinction

Behavioral Ecology

Temperature

Water

Nutrients

Demographic Techniques and Population Patterns

Life Tables and Demography

Population Growth

Competition and Coexistence

Facilitation

Predation

Parasitism

Population Regulation

Species Diversity

Species Richness Patterns

Species Richness and Community Services

Succession

Island Biogeography

Terrestrial Biomes

Marine Biomes

Freshwater Biomes

Food Webs and Energy Flow

Biomass Production

Biogeochemical Cycles

Filters

Exam 14: Herbivory

The flavors of chocolate and vanilla come from

Which of the following examples shows a strong impact of herbivores on native vegetation?

In Australia, nearly 90% of cactus plants on islands with cattle have spines whereas on islands with no grazers, only about 20% of the pads possess them. This supports the idea of

Animal tissue generally contains about ____ times as much nitrogen as plant tissue, so high nitrogen plants are favored by herbivores.

Why don't we see more plant material eaten by herbivores?

Invertebrate grazers, such as grasshoppers, tend to have greater impacts on host plants than vertebrate grazers, such as bison.

Unapparent plants

Organisms generally have to digest large amounts of plants containing phenolics to discourage them from feeding.

Which type of food plant/algae is subject to the highest levels of herbivory by herbivores?

An Introduction to Ecology

Population Genetics

Natural Selection, Speciation, and Extinction

Behavioral Ecology

Temperature

Water

Nutrients

Demographic Techniques and Population Patterns

Life Tables and Demography

Population Growth

Competition and Coexistence

Facilitation

Predation

Parasitism

Population Regulation

Species Diversity

Species Richness Patterns

Species Richness and Community Services

Succession

Island Biogeography

Terrestrial Biomes

Marine Biomes

Freshwater Biomes

Food Webs and Energy Flow

Biomass Production

Biogeochemical Cycles

Filters