Question 1

Many plants use ________ defenses,such as hairy leaves,thorns,or spines,to deter herbivory.

Accepted Answer

The answer of Many plants use ________ defenses,such as hairy...

Question 2

The trade-off between conflicting demands faced by a predator is described by the ________ foraging theory.

Accepted Answer

The answer of The trade-off between conflicting demands faced by...

Question 3

A Type III functional response is the most commonly reported for predators.

Accepted Answer

A) True 
 B)False

Question 4

If defoliation of trees is complete,the leaves that regrow are often larger than the original leaves.

Accepted Answer

A) True 
 B)False

Question 5

The amount of time an organism spends foraging must be balanced against other time constraints,such as defense,avoiding predators,searching for mates,or caring for young.

Accepted Answer

A) True 
 B)False

Question 6

Most predator populations grow slowly in comparison to those of their prey.

Accepted Answer

A) True 
 B)False

Question 7

Most predators are also ________ to other predatory species.

Accepted Answer

The answer of Most predators are also ________ to other...

Question 8

Which of the following hunting methods has the lowest frequency of success but requires the least amount of energy?

Accepted Answer

A) satiation 
B) ambush 
C) stalking 
D) pursuit 
A) satiation 
B) ambush 
C) stalking 
D) pursuit

Question 9

The sigmoidal relationship between prey density and per capita predation rate in a Type III functional response can be explained by all of the following factors,except

Accepted Answer

A) prey access to refuge. 
B) predator preference. 
C) recognition of prey by predator. 
D) predator density. 
A) prey access to refuge. 
B) predator preference. 
C) recognition of prey by predator. 
D) predator density.

Question 10

The movement of predators into areas of high prey density is a type of numerical response referred to as a(n)________ response.

Accepted Answer

The answer of The movement of predators into areas of...

Question 11

________ mimicry occurs when a nontoxic species closely resembles a toxic species,both of which are avoided by predators.

Accepted Answer

The answer of ________ mimicry occurs when a nontoxic species...

Question 12

Acoustic mimicry by some nonvenomous snakes that rattle their tails like rattlesnakes is a form of Müllerian mimicry.

Accepted Answer

A) True 
 B)False

Question 13

A plant may be able to compensate for the loss of leaves by increasing the rate of ________ in the remaining leaves.

Accepted Answer

The answer of A plant may be able to compensate...

Question 14

Coevolution between predator and prey suggests

Accepted Answer

A) as prey decrease in number,predators will switch prey. 
B) as predators become smarter at catching prey,prey will become smarter at escaping predation. 
C) as predators feed on prey,prey will become more palatable over time. 
D) as predators drive down prey populations,they become worse at catching prey. 
A) as prey decrease in number,predators will switch prey. 
B) as predators become smarter at catching prey,prey will become smarter at escaping predation. 
C) as predators feed on prey,prey will become more palatable over time. 
D) as predators drive down prey populations,they become worse at catching prey.

Question 15

According to the optimal foraging theory,a predator will select prey 1 (P1)over prey 2 (P2)when

Accepted Answer

A) E1  N prey2. 
A) E1  N prey2.

Question 16

A Type I functional response leads to regulation of the prey population by the predator.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is a positive numerical response of a predator in response to an increase in prey density?

Accepted Answer

A) decrease in predator mortality rate 
B) increase in predator survival rate 
C) immigration of predators to an area of high prey density 
D) decrease in predator reproduction rate 
A) decrease in predator mortality rate 
B) increase in predator survival rate 
C) immigration of predators to an area of high prey density 
D) decrease in predator reproduction rate

Question 18

The ideal number of fish to catch to provide the most yield while sustaining fisheries is

Accepted Answer

A) at K/2. 
B) at K. 
C) dN/dt. 
D) rN(1 - N/K). 
A) at K/2. 
B) at K. 
C) dN/dt. 
D) rN(1 - N/K).

Question 19

A parasitoid

Accepted Answer

A) is a true predator. 
B) actively pursues its prey. 
C) attacks the host indirectly by laying its eggs in or on the prey's body. 
D) preys only on animals. 
A) is a true predator. 
B) actively pursues its prey. 
C) attacks the host indirectly by laying its eggs in or on the prey's body. 
D) preys only on animals.

Question 20

Animals that are boldly colored or patterned to warn potential predators possess warning coloration or ________.

Accepted Answer

The answer of Animals that are boldly colored or patterned...

Exam 14: Predation

Many plants use ________ defenses,such as hairy leaves,thorns,or spines,to deter herbivory.

The trade-off between conflicting demands faced by a predator is described by the ________ foraging theory.

A Type III functional response is the most commonly reported for predators.

If defoliation of trees is complete,the leaves that regrow are often larger than the original leaves.

The amount of time an organism spends foraging must be balanced against other time constraints,such as defense,avoiding predators,searching for mates,or caring for young.

Most predator populations grow slowly in comparison to those of their prey.

Most predators are also ________ to other predatory species.

Which of the following hunting methods has the lowest frequency of success but requires the least amount of energy?

The sigmoidal relationship between prey density and per capita predation rate in a Type III functional response can be explained by all of the following factors,except

The movement of predators into areas of high prey density is a type of numerical response referred to as a(n)________ response.

________ mimicry occurs when a nontoxic species closely resembles a toxic species,both of which are avoided by predators.

Acoustic mimicry by some nonvenomous snakes that rattle their tails like rattlesnakes is a form of Müllerian mimicry.

A plant may be able to compensate for the loss of leaves by increasing the rate of ________ in the remaining leaves.

Coevolution between predator and prey suggests

According to the optimal foraging theory,a predator will select prey 1 (P1)over prey 2 (P2)when

A Type I functional response leads to regulation of the prey population by the predator.

Which of the following is a positive numerical response of a predator in response to an increase in prey density?

The ideal number of fish to catch to provide the most yield while sustaining fisheries is

A parasitoid

Animals that are boldly colored or patterned to warn potential predators possess warning coloration or ________.

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Adaptation and Natural Selection

Plant Adaptations to the Environment

Animal Adaptations to the Environment

Properties of Populations

Population Growth

Life History

Intraspecific Population Regulation

Species Interactions, population Dynamics, and Natural Selection

Interspecific Competition

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Ecosystem Energetics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

The Ecology of Climate Change

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