Question 1

According to the optimal foraging theory,a predator should abandon a patch

Accepted Answer

A) when the rate of energy gain is at a maximum. 
B) at low values of cumulative energy gain (G). 
C) when the preferred prey species is unavailable. 
D) any time a higher quality patch is available. 
A) when the rate of energy gain is at a maximum. 
B) at low values of cumulative energy gain (G). 
C) when the preferred prey species is unavailable. 
D) any time a higher quality patch is available.

Question 2

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 3

When prey produce so many offspring in a short period of time that predators can attack only a fraction of them,it is referred to as

Accepted Answer

A) a numerical response. 
B) a functional response. 
C) predator satiation. 
D) cryptic reproduction. 
A) a numerical response. 
B) a functional response. 
C) predator satiation. 
D) cryptic reproduction.

Question 4

The Lotka-Volterra model of predator-prey interactions assumes a mutual regulation of predator and prey populations.

Accepted Answer

A) True 
 B)False

Question 5

In the Lotka-Volterra model of predator-prey interactions,population growth is regulated through

Accepted Answer

A) reproduction for both predator and prey. 
B) reproduction for the predator and mortality for the prey. 
C) reproduction for the prey and mortality for the predator. 
D) mortality for both predator and prey. 
A) reproduction for both predator and prey. 
B) reproduction for the predator and mortality for the prey. 
C) reproduction for the prey and mortality for the predator. 
D) mortality for both predator and prey.

Question 6

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 7

A type ________ functional response occurs when the rate at which prey are consumed is low at first,increases,and then decreases in an S-shaped fashion as the rate of predation approaches the maximum value.

Accepted Answer

The answer of A type ________ functional response occurs when...

Question 8

Which of the following is an example of cryptic coloration?

Accepted Answer

A) a brown bird that nests on the ground 
B) a deer with a large,white tail 
C) skunks with black and white stripes 
D) snakes with black,yellow,and red bands 
A) a brown bird that nests on the ground 
B) a deer with a large,white tail 
C) skunks with black and white stripes 
D) snakes with black,yellow,and red bands

Question 9

The recognition of a particular species as potential prey by a predator is called a(n)________ image.

Accepted Answer

The answer of The recognition of a particular species as...

Question 10

The response of a predator's consumption rate to prey density is a key factor as to whether a predator can regulate a prey population.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is an example of Mullerian mimicry?

Accepted Answer

A) walking sticks that resemble twigs 
B) stinkbugs that produce a noxious odor 
C) flounders whose colors resemble the sea floor 
D) wasps with black and yellow bands 
A) walking sticks that resemble twigs 
B) stinkbugs that produce a noxious odor 
C) flounders whose colors resemble the sea floor 
D) wasps with black and yellow bands

Question 12

An organism that feeds on plant or algal tissues is referred to as a(n)

Accepted Answer

A) herbivore. 
B) omnivore. 
C) carnivore. 
D) decomposer 
A) herbivore. 
B) omnivore. 
C) carnivore. 
D) decomposer

Question 13

The increase in a predator's reproduction in response to an increase in the consumption of prey is known as the predator's ________ response.

Accepted Answer

The answer of The increase in a predator's reproduction in...

Question 14

________ prey on autotrophs and do not kill the individuals they feed on.

Accepted Answer

The answer of ________ prey on autotrophs and do not...

Question 15

In the Lotka-Volterra equations that represent predator-prey interactions,predators are a source of density-independent mortality for prey.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following gray tree frog (Hyla)tadpole body forms is most common in populations raised in the presence of predators (aquatic dragonfly larvae,Anax)?

Accepted Answer

A) long body and great tail depth 
B) long body and minimal tail depth 
C) great tail depth and short overall body length 
D) minimal tail depth and short overall body length 
A) long body and great tail depth 
B) long body and minimal tail depth 
C) great tail depth and short overall body length 
D) minimal tail depth and short overall body length

Question 17

Which of the following is not a class of plant secondary compounds?

Accepted Answer

A) terpenoids 
B) phenolics 
C) nitrogen-based compounds 
D) alkanes 
A) terpenoids 
B) phenolics 
C) nitrogen-based compounds 
D) alkanes

Question 18

Which of the following is functionally a true predator?

Accepted Answer

A) parasite 
B) planktivore 
C) grazer 
D) parasitoid 
A) parasite 
B) planktivore 
C) grazer 
D) parasitoid

Question 19

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 20

A species that consumes both plant and animal tissue is called a(n)________.

Accepted Answer

The answer of A species that consumes both plant and...

Exam 15: Predation

According to the optimal foraging theory,a predator should abandon a patch

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

When prey produce so many offspring in a short period of time that predators can attack only a fraction of them,it is referred to as

The Lotka-Volterra model of predator-prey interactions assumes a mutual regulation of predator and prey populations.

In the Lotka-Volterra model of predator-prey interactions,population growth is regulated through

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.

A type ________ functional response occurs when the rate at which prey are consumed is low at first,increases,and then decreases in an S-shaped fashion as the rate of predation approaches the maximum value.

Which of the following is an example of cryptic coloration?

The recognition of a particular species as potential prey by a predator is called a(n)________ image.

The response of a predator's consumption rate to prey density is a key factor as to whether a predator can regulate a prey population.

Which of the following is an example of Mullerian mimicry?

An organism that feeds on plant or algal tissues is referred to as a(n)

The increase in a predator's reproduction in response to an increase in the consumption of prey is known as the predator's ________ response.

________ prey on autotrophs and do not kill the individuals they feed on.

In the Lotka-Volterra equations that represent predator-prey interactions,predators are a source of density-independent mortality for prey.

Which of the following gray tree frog (Hyla)tadpole body forms is most common in populations raised in the presence of predators (aquatic dragonfly larvae,Anax)?

Which of the following is not a class of plant secondary compounds?

Which of the following is functionally a true predator?

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

A species that consumes both plant and animal tissue is called a(n)________.

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