Question 1

You have two species of Anolis lizard on an island.They both eat small insects.Because of favorable weather,one species reproduces exponentially.What effects will this have on the populations of both Anolis species and on the prey species?

Accepted Answer

The drastic increase of the number of in...

Question 2

How does a high prey species population affect the population of a predator species?

Accepted Answer

It will allow an inc...

Question 3

Which is NOT an abiotic factor that could affect a population?

Accepted Answer

A)   breeding places
B)   precipitation
C)   temperature
D)   vegetation
E)   habitatF) B) and E)
G) C) and E)

Question 4

All of the polar bears,seals,fish species,whales,seabirds and the Aleut people in the Aleutian Islands make up a(n) ______.

Accepted Answer

A)   island ecosystem
B)   island system population
C)   island biogeographic unit
D)   population
E)   communityF) D) and E)
G) C) and D)

Question 5

Carrying capacity is the _____.

Accepted Answer

A)   number of individuals in a given area
B)   total biomass of a given area
C)   total plant biomass of a given area
D)   total plant biomass minus the animal biomass in a given area
E)   maximum number of individuals of a population that an area can supportF) A) and B)
G) None of the above

Question 6

A few years after a predator species population decreases,the ____.

Accepted Answer

A)   predator population will increase
B)   prey population must decrease
C)   predator population will decrease
D)   predator population will exceed carrying capacity
E)   prey population will increaseF) A) and E)
G) C) and D)

Question 7

A species of highly territorial individuals with limited territory and a large population is most likely to have a ____ distribution.

Accepted Answer

A)   random
B)   linear
C)   spherical
D)   clumped
E)   uniformF) None of the above
G) B) and C)

Question 8

The prey species on Isle Royale is the

Accepted Answer

A)   moose.
B)   wolf.
C)   fox.
D)   ravens.
E)   caribou.F) A) and C)
G) All of the above

Question 9

What defines an ecosystem?

Accepted Answer

An ecosystem is defined by bot...

Question 10

Which of the following can be used to monitor the health of a wild animal?

Accepted Answer

A)   scat
B)   bones
C)   urine
D)   DNA
E)   All of the above.F) D) and E)
G) A) and B)

Question 11

Label each of the following with "D" for density-dependent or "I" for density-independent factors.
A) _____ the presence of a predator reduces prey populations by 50%
B) _____ competition for the same food resources
C) _____ pollution in a river wipes out 50% of fish population
D) _____ a winter storm wipes out 75% of a population
E) _____ a flood drowns 80% of mammals

Accepted Answer

The answer of Label each of the following with "D"...

Question 12

In predator-prey relationships,scientists are interested in which level of organization?

Accepted Answer

A)   niches
B)   an individual
C)   a population
D)   a community
E)   an ecosystemF) A) and D)
G) A) and C)

Question 13

How can an abiotic factor be a density-dependent factor as well? Give an example.

Accepted Answer

Abiotic factors play a role in shaping t...

Question 14

In the Isle Royale study,why were wolf populations easier to accurately count than moose populations?

Accepted Answer

Moose are solitary; it is nearly impossi...

Question 15

Why do populations rise and fall around carrying capacity instead of just remaining stable at carrying capacity?

Accepted Answer

Populations grow until they exceed carry...

Question 16

A population's growth rate depends on

Accepted Answer

A)   birth rate.
B)   death rate.
C)   immigration.
D)   emigration.
E)   All of the above.F) None of the above
G) B) and E)

Question 17

Which is NOT a biotic factor that could affect a population?

Accepted Answer

A)   predator density
B)   prey density
C)   water availability
D)   vegetation
E)   community interactionsF) A) and D)
G) C) and D)

Question 18

When a population reaches its carrying capacity,its growth rate will

Accepted Answer

A)   increase exponentially.
B)   increase arithmetically.
C)   slow and remain near zero.
D)   decrease slowly.
E)   decrease rapidly.F) A) and B)
G) B) and E)

Question 19

What is the difference between a community and an ecosystem?

Accepted Answer

A community consists of intera...

Question 20

The ocean,sand,rocks,plants,seagulls,and invertebrates represent a(n)

Accepted Answer

A)   individual.
B)   population.
C)   community.
D)   ecosystem.
E)   biosphere.F) D) and E)
G) A) and B)

Exam 21: B: Population Ecology on the Tracks of Wolves and Moose

In predator-prey relationships,scientists are interested in which level of organization?

Correct Answer
verified

What defines an ecosystem?

Correct Answer
verified
An ecosystem is defined by bot...
View Answer

A species of highly territorial individuals with limited territory and a large population is most likely to have a ____ distribution.

Correct Answer
verified

How does a high prey species population affect the population of a predator species?

Correct Answer
verified
It will allow an inc...
View Answer

When a population reaches its carrying capacity,its growth rate will

Correct Answer
verified

Which is NOT a biotic factor that could affect a population?

Correct Answer
verified

All of the polar bears,seals,fish species,whales,seabirds and the Aleut people in the Aleutian Islands make up a(n) ______.

Correct Answer
verified

In the Isle Royale study,why were wolf populations easier to accurately count than moose populations?

Correct Answer
verified
Moose are solitary; it is nearly impossi...
View Answer

The prey species on Isle Royale is the

Correct Answer
verified

Which is NOT an abiotic factor that could affect a population?

Correct Answer
verified

A population's growth rate depends on

Correct Answer
verified

How can an abiotic factor be a density-dependent factor as well? Give an example.

Correct Answer
verified
Abiotic factors play a role in shaping t...
View Answer

Carrying capacity is the _____.

Correct Answer
verified

You have two species of Anolis lizard on an island.They both eat small insects.Because of favorable weather,one species reproduces exponentially.What effects will this have on the populations of both Anolis species and on the prey species?

Correct Answer
verified
The drastic increase of the number of in...
View Answer

What is the difference between a community and an ecosystem?

Correct Answer
verified
A community consists of intera...
View Answer

Which of the following can be used to monitor the health of a wild animal?

Correct Answer
verified

A few years after a predator species population decreases,the ____.

Correct Answer
verified

Why do populations rise and fall around carrying capacity instead of just remaining stable at carrying capacity?

Correct Answer
verified
Populations grow until they exceed carry...
View Answer

Correct Answer
verified

The ocean,sand,rocks,plants,seagulls,and invertebrates represent a(n)

Correct Answer
verified

Exam 21: B: Population Ecology on the Tracks of Wolves and Moose

In predator-prey relationships,scientists are interested in which level of organization?

Correct AnswerverifiedShow Answer

What defines an ecosystem?

Correct AnswerverifiedAn ecosystem is defined by bot...View AnswerShow Answer

A species of highly territorial individuals with limited territory and a large population is most likely to have a ____ distribution.

Correct AnswerverifiedShow Answer

How does a high prey species population affect the population of a predator species?

Correct AnswerverifiedIt will allow an inc...View AnswerShow Answer

When a population reaches its carrying capacity,its growth rate will

Correct AnswerverifiedShow Answer

Which is NOT a biotic factor that could affect a population?

Correct AnswerverifiedShow Answer

All of the polar bears,seals,fish species,whales,seabirds and the Aleut people in the Aleutian Islands make up a(n) ______.

Correct AnswerverifiedShow Answer

In the Isle Royale study,why were wolf populations easier to accurately count than moose populations?

Correct AnswerverifiedMoose are solitary; it is nearly impossi...View AnswerShow Answer

The prey species on Isle Royale is the

Correct AnswerverifiedShow Answer

Which is NOT an abiotic factor that could affect a population?

Correct AnswerverifiedShow Answer

A population's growth rate depends on

Correct AnswerverifiedShow Answer

How can an abiotic factor be a density-dependent factor as well? Give an example.

Correct AnswerverifiedAbiotic factors play a role in shaping t...View AnswerShow Answer

Carrying capacity is the _____.

Correct AnswerverifiedShow Answer

You have two species of Anolis lizard on an island.They both eat small insects.Because of favorable weather,one species reproduces exponentially.What effects will this have on the populations of both Anolis species and on the prey species?

Correct AnswerverifiedThe drastic increase of the number of in...View AnswerShow Answer

What is the difference between a community and an ecosystem?

Correct AnswerverifiedA community consists of intera...View AnswerShow Answer

Which of the following can be used to monitor the health of a wild animal?

Correct AnswerverifiedShow Answer

A few years after a predator species population decreases,the ____.

Correct AnswerverifiedShow Answer

Why do populations rise and fall around carrying capacity instead of just remaining stable at carrying capacity?

Correct AnswerverifiedPopulations grow until they exceed carry...View AnswerShow Answer

Correct AnswerverifiedShow Answer

The ocean,sand,rocks,plants,seagulls,and invertebrates represent a(n)

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
An ecosystem is defined by bot...
View Answer

Correct Answer
verified

Correct Answer
verified
It will allow an inc...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Moose are solitary; it is nearly impossi...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Abiotic factors play a role in shaping t...
View Answer

Correct Answer
verified

Correct Answer
verified
The drastic increase of the number of in...
View Answer

Correct Answer
verified
A community consists of intera...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Populations grow until they exceed carry...
View Answer

Correct Answer
verified

Correct Answer
verified