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Virtual Day Unit 3 Review

Total questions: 154

Worksheet time: 2hrs 32mins

Name
Class
Date
1.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

2.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

3.

If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?

a)

Will Increase

b)

Will Decrease

c)

Will stay the same

4.

What are factors that affect carrying capacity?

a)

Biotic only

b)

Biotic and abiotic

c)

Depends on the ecosystem

d)

Abiotic only

5.

What type of growth is demonstrated in the graph?

a)

Exponential

b)

Carrying capacity

c)

Linear

d)

Negative

6.

What point on the graph represents the carrying capacity?

a)

A

b)

B

c)

C

d)

D

7.

Logistic growth displays a ____-shaped curve which indicates a population size capped at carrying capacity.

a)

J

b)

S

c)

C

d)

V

8.
What is the approximate carrying capacity of Paramecium aurelia cultured alone?
a)
150
b)
400
c)
450
d)
500
9.

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

a)

It will decrease.

b)

It will increase.

c)

It will remain the same.

10.

What is an Abiotic Factor?

a)

A NON-living factor that can affect an ecosystem

b)

A living factor that can affect an ecosystem

c)

The carrying capacity of an ecosystem

11.

What is a Biotic Factor?

a)

The carrying capacity of an ecosystem

b)

A NON-living factor that can affect an ecosystem

c)

A living factor that can affect an ecosystem

12.

A wildfire spreading in the forest is an example of

a)

Density-dependent factor

b)

Densitiy INdependent factor

c)

Carrying capacity

13.

Can a population go over its carrying capacity?

a)

Yes

b)

No

c)

Maybe

14.

Biodiversity, aka biological diversity, usually refers to

a)

the number of people on Earth

b)

the variety of species on Earth

c)

the number of animal species in a specific area

d)

the number of plant species in a specific area

15.

Which of the following terms describes any major changes that may occur to an ecosystem?

a)

Distubance

b)

Resiliency

c)

Adaptations

d)

Biodiversity

16.
How can humans best help an endangered species avoid extinction?
a)
they can feed the animals
b)
they can put the animals in a zoo
c)
they can protect the animal’s habitat
d)
they can take the animal to new habitats
17.

Anything that limits the growth of a population like food, water, habitat, and number of mates in that environment.

a)

Limiting Factors

b)

Carrying capacity

c)

Logistic Growth

d)

Exponential Growth

e)

Survival

18.

This type of pattern of growth occurs when the birth rate in a specific time period is continuous causing quick population increase and when resources are unlimited resulting in a J-shaped curve

a)

Decreasing growth

b)

Equilibrium Growth

c)

Logistic Growth

d)

Exponential Growth

e)

Stable growth

19.

This pattern of growth occurs when the population rapidly increases in size until it reaches a certain point, called the carrying capacity. At this time, the resources are not enough to support the population. This results in an S-shaped curve.

a)

decreasing growth

b)

Equilibrium Growth

c)

Logistic Growth

d)

Exponential Growth

e)

Stable Growth

20.

In this graph what does the line labeled "K" represent?

a)

Flocking

b)

Carrying capacity

c)

Birth rate

d)

Exponential Growth

e)

Survival

21.

From this picture what two things will increase population size? (pick two answers)

a)

emigration

b)

immigration

c)

Birth rate

d)

Death Rate

22.

From this picture what two things will decrease population size? (pick two answers)

a)

emigration

b)

immigration

c)

Birth rate

d)

Death Rate

23.

Disease, Competition for habitat, competition for food, and predation are examples of .....

a)

Density Dependent Limiting factors

b)

immigration

c)

Emigration

d)

Density Independent Limiting factors

e)

Exponential growth

24.

Natural disasters, climate, and human activities/impact like pollution, habitat loss or poaching are examples of .....

a)

Density Dependent Limiting factors

b)

immigration

c)

Emigration

d)

Density Independent Limiting factors

e)

Exponential growth

25.

Human population growth appears to not have a carry capacity even though scientist have estimated the natural carry capacity of humans on Earth to be about 1 billion. How can this be explained?

a)

Humans have found new ways to reduce the effects of limiting factors.

b)

Humans now consume less resources than they did in the past

c)

Humans have used more of Earth so more people can fit.

d)

The earth has continued to grow at the same rate as the human population.

e)

Do to increased Biodiversity, plants and animals are thriving today providing more natural resources

26.

What type of growth is human population displaying?

a)

Exponential

Growth

b)

Logistic Growth

c)

No growth

27.

Using the graph : Do the wolves on Isle Royale have a carrying capacity?

a)

Yes

b)

No

c)

Cannot determine

28.

Using the graph : Predict what was happening to the moose population on Isle Royale from 1974-1979

a)

increasing

b)

decreasing

c)

staying the same

29.

Using the graph : Predict what was happening to the wolf population on Isle Royale from 1989-1994

a)

increasing

b)

decreasing

c)

staying the same

30.

Look at the graph to answer the question: When the graph is increasing, is the birth rate or death rate higher?

a)

birth rate

b)

death rate

31.

Look at the graph to answer the question: When the graph is decreasing, is the birth rate or death rate higher?

a)

birth rate

b)

death rate

32.

A _____________ is when a species disappears from a specific area.

a)

Local extinction

b)

Functional Extinction

c)

Global Extinction

33.

A _____________ is when a species disappears from the planet.

a)

Local extinction

b)

Functional Extinction

c)

Global Extinction

34.

A _____________ is when a species that can no longer reproduce in the wild.

a)

Local extinction

b)

Functional Extinction

c)

Global Extinction

35.

Which of the following would increase the death rate? (pick two)

a)

plenty of food

b)

Introduction of a disease

c)

The ability to find a mate

d)

Decrease in the predator population

e)

Increase in the predator population

36.

Which of the following would increase the birth rate? (pick two)

a)

plenty of food

b)

Introduction of a disease

c)

The ability to find a mate

d)

increased hunting or poaching

e)

Increase in the predator population

37.

Which of the following equations represents a decreasing population?

(BR = Birth rate, DR = Death rate, I = Immigration, E = Emigration)

a)

BR + I > DR +E

b)

BR + I < DR +E

c)

BR + I = DR +E

d)

BR + DR + I + E = 50

38.

Which of the following equations represents an increasing population?

(BR = Birth rate, DR = Death rate, I = Immigration, E = Emigration)

a)

BR + I > DR +E

b)

BR + I < DR +E

c)

BR + I = DR +E

d)

BR + DR + I + E = 50

39.

Which of the following equations represents a stable population?

(BR = Birth rate, DR = Death rate, I = Immigration, E = Emigration)

a)

BR + I > DR +E

b)

BR + I < DR +E

c)

BR + I = DR +E

d)

BR + DR + I + E = 50

40.

The maximum number of organisms an ecosystem can support

a)

Limiting Factors

b)

Carrying capacity

c)

Logistic Growth

d)

Exponential Growth

e)

Survival

41.
If a population of 100 birds increases to 120 in a year, what is its rate of growth?
a)
0.16
b)
0.2
c)
1.2
d)
2
e)
20
42.
A population of river otters has a puolation growth rate of 0.2 per year. If the population starts out with 50 individuals and theres is no death and no migration, how many individuals would you expect after one year and after two years?
a)
10; 2
b)
52; 54
c)
60; 70
d)
60; 72
e)
70; 90
43.
At the start of a study there were 200 spotted salamanders in an old-growth forest patch in western Oregon. Over the next year a biologist tracking the salamanders saw that 25 new salamanders hatched and 5 died. What was the population growth rate for that year?
a)
0.1
b)
5
c)
20
d)
25
e)
200
44.
Following the exponential growth state of Paramecium in Gause's experiment, a population graph would begin to display an ________-shaped curve as the population approaches ________.
a)
S: carrying capacity
b)
J: carrying capacity
c)
S: secondary succession
d)
J: density maximazition
e)
J: logistic growth
45.
The intrinsic growth rate of a population
a)
is the number of yearly births in a population.
b)
is the number of yearly births minus the number of yearly deaths in a population.
c)
is the minimum number of births likely to occur in a population under ideal conditions.
d)
is the maximum potential for growth in a population under ideal conditions.
e)
is the maximum potential for growth in a population given limited resources.
46.
Which does NOT cause rapid growth in a population?
a)
Elimination of a pollutant
b)
Eliminator of predators
c)
Increase in food supply
d)
Introduction of a new parasite
e)
Introduction into a new habitat
47.
A population of bacteria in a Petri dish is growing at an exponential rate. Assume a starting population of 200 bacterium. if the growth rate for the species increases 10 percent every hour, approximately how long will it take for the number of bacterium to reach 400?
a)
1 hour
b)
3 hours
c)
4 hours
d)
6 years
e)
7 hours
48.
A population of rabbits, introduced to an island, has rapid growth for a few years and then slows. What is a likely reason for this pattern?
a)
The carrying capacity has been reached.
b)
The sex ration has changed.
c)
Immigration has diminished.
d)
The instrinsic growth rate has changed.
e)
The population has experienced a die-off.
49.
Which is NOT a reason that populations of predators increase when populations of prey are high?
a)
Predator nutrition is better.
b)
It is easier to find prey.
c)
The prey population may be weakened by competition for resources.
d)
Reproductive output may increase.
e)
There is more competition among predators for prey.
50.
The ________ growth model is used to predict the growth of populations that are subject to density-______ constraints, such as increased competition for food, water, or nest sites.
a)
logistic; dependent
b)
logistic; independent
c)
exponential; independent
d)
exponential; dependent
e)
exponential; carrying capacity
51.
A population of mushrooms is experiencing exponential growth. When graphed, this population would display an __-shaped curve since the population _____ limited by resources.
a)
S; is always
b)
S; is not currently
c)
J; is
d)
J; is not currently
e)
J; is always
52.
Use Figure 6-1 to select the option that correctly labels point A and point B.
a)
A = point where overshoot begins; B= growth rate
b)
A = point where growth begins to slow; B = carrying capacity
c)
A = point of slowest growth; B = carrying capacity
d)
A = point where growth begins to slow; B = growth rate
e)
A = point where die-off begins; B = highest growth rate
53.
Which pattern describes a type I survivorship curve?
a)
Low survivorship early in life with few individuals reaching adulthood
b)
Low surviviorship early in life with many individuals reaching adulthood
c)
Constant decline in survivorship throughout most of the lifespan
d)
High survival throughout the lifespan until individuals die in old age
e)
High survival throughout the lifespan until individuals die during adolescence
54.
Which of the following accurately compares growth patterns in eagles and bacteria?
a)
Under ideal conditions, bacteria and eagle populations both grow exponentially.
b)
Populations of bacteria show exponential growth, whereas populations of eagles do not.
c)
Because eagles are larger than bacteria, they have a J-shaped growth curve.
d)
The growth curve of bacteria is rarely limited, whereas the growth of eagles is often limited.
e)
Eagles show r-selected growth patterns and bacteria show K-selected patterns.
55.
Which of the following is not a K-selected species?
a)
Elephant
b)
Human
c)
Mouse
d)
Panda
e)
Zebra
56.
Characteristics of an r-selected species include I. many offspring. II. fast population growth rate III. short time to reproductive maturity
a)
I only
b)
II only
c)
III only
d)
I and II
e)
I, II, and III
57.
Which is most likely to lead to an inbreeding depression?
a)
Sexual reproduction
b)
Large population
c)
Gene flow
d)
Low genetic diversity
e)
Ecosystem variability
58.
An inbreeding depression can lead to
a)
an increase in the expression of harmful genetic mutations.
b)
a decrease in unviable offspring.
c)
an increase in gene flow.
d)
a decrease in species extinction.
e)
an increase in disease resistance.
59.
Which would not be a benefit of higher genetic diversity within a species?
a)
Higher disease resistance
b)
More likely to survive environmental change
c)
Increased access to beneficial traits
d)
More diversity of species
e)
Less potential for inbreeding depression
60.
Which endangered species has suffered inbreeding depression because of population size?
a)
Prairie dog
b)
African lion
c)
Grizzly bear
d)
Asian grass carp
e)
Florida panther
61.

Which of the following describes a population?

a)

The total number of people, animals, and plants in New York City

b)

The total number of apartments in New York City

c)

The total number of people living in New York City

d)

The amount of water in the Hudson River

62.

What type of growth is shown in the diagram?

a)

exponential growth

b)

logistic growth

c)

predator-prey cycle

d)

boom-bust curve

63.

Largest number of individuals of a population that the environment can support...

a)

carrying capacity

b)

population

c)

biome

d)

mutualism

64.

What is the carrying capacity for this sheep population?

a)

2.0 million

b)

1.0 million

c)

1.6 million

d)

0.5 million

65.

What point on the graph represents the carrying capacity?

a)

A

b)

B

c)

C

d)

D

66.

When a population grows past the ecosystem's carrying capacity, what most likley happens to the population?

a)

Continues to grow

b)

The population starts to die off to return to carrying capcity

c)

The population will go completely extinct due to lack of resources

67.

Which limiting factor is density independent?

a)

water

b)

food

c)

natural disasters

68.

Which statement best explains section X?

a)

competition does not occur between members of different species in the same habitat

b)

energy is used for interbreeding between members of different species

c)

the population has reached the carrying capacity of its environment

d)

a predator recycles the remains of dead organisms

69.
What is the carrying capacity of this population?
a)
100
b)
200
c)
300
d)
400
70.

Which of the following is required for a population to diverge into two separate species?

a)

The two populations must have evolved different physical appearances.

b)

The two populations must have mutated at least 10 times.

c)

The two populations must have become reproductively isolated.

d)

The two populations must have evolved analogous structures.

71.

The emergence of new rivers or streams is a type of ____________ isolation.

a)

Temporal

b)

Mechanical

c)

Behavioral

d)

Geographic

72.

Speciation that caused by breeding occurring at different time of the day is called

a)

behavioral isolation

b)

temporal isolation

c)

ecological isolation

d)

habitat isolation

73.
Refer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?
a)
A
b)
B
c)
C
d)
this is not a survivorship curve
74.
Which survivorship curve represents a species where most of the individuals live through their lives and die of old age?
a)
Type 1
b)
Type 2
c)
Type 3
75.
Which kind of dispersion is #1?
a)
clumped
b)
random
c)
uniform
76.
Which factor is a density-dependent limiting factor on the population of a species?
a)
seasonal variation
b)
natural disasters
c)
unusual weather
d)
predation
77.
What is the carrying capacity of the following graph?
a)
1000
b)
8000
c)
800
d)
600
78.
A population is...
a)
A group of one species in one area
b)
Multiple species that live in one area
c)
All of the living and nonliving things in an area
d)
None of these
79.
Boom and bust cycles, where populations will grow and shrink over and over, are usually caused by...
a)
Predator-Prey Relationships
b)
Parasite-Host relationships
c)
Extinction 
d)
None of these
80.
Logistic growth has 3 phases. In Phase 1, the population grows rapidly. In Phase 2, population grows slowly. In Phase 3, growth stops. What causes growth to stop in the 3rd phase of logistic growth?
a)
Emigration
b)
Immigration
c)
Exponential Growth
d)
Carrying Capacity
81.
Which limiting factor is independent of the number of individuals in a population?
a)
competition
b)
parasitism/disease
c)
stress
d)
natural disasters
82.
Which limiting factor would increase due to the number of individuals in a population?
a)
Unusual weather
b)
Natural disaster
c)
Births
d)
Disease
83.

What does the graph represent?

a)

Emigration

b)

Exponential growth

c)

Immigration

d)

Logistic Growth

84.
What does the graph represent?
a)
Emigration
b)
Exponential growth
c)
Immigration
d)
Logistic Growth
85.
What point on the graph represents the carrying capacity?
a)
A
b)
B
c)
C
d)
D
86.
The graph of logistic growth can be described as...
a)
S-shaped
b)
J-shaped
c)
W-shaped
d)
U-shaped
87.
When a population has reached carrying capacity
a)
Growth & Immigration are equal to Death & emigration
b)
Growth & Immigration are less than Death & emigration
c)
Growth & Immigration are greater than Death & emigration
d)
Growth is exponential
88.
One reason predators might increase is
a)
The weather is warmer
b)
Parasites have increased
c)
The prey have increased
d)
Food has decreased
89.
Organisms move away from an area
a)
Competition
b)
Predation
c)
Emigration
d)
Immigration
90.
largest number of individuals of a population that the environment can support  
a)
carrying capacity
b)
primary succession 
c)
denitrification
d)
mutualism
91.
An environmental factor such as predation, disease, and competition that depends on the number of members in a population per unit
a)
dispersion
b)
density- independent factor
c)
density- dependent factor
d)
population growth rate
92.
An environmental factor such as storms and extreme heat or cold that affects population regardless of their density
a)
density- dependent factor
b)
population density
c)
dispersion
d)
density- independent factor
93.
Competition between two different species, such as Paramecium caudatum & Paramecium aurelia,  is called _____ competition.
a)
interspecific
b)
intraspecific
c)
predator
d)
herbivore
94.
Name that population pyramid...
a)
Exponential
b)
Declining
c)
Rapid Growth
d)
Stable Growth
95.
Name that population pyramid?
a)
Stable Growth
b)
Developing Country
c)
Exponential Growth
d)
Negative Growth
96.
a)
Exponential Growth
b)
Stable Growth
c)
Declining Growth
97.

Describes organisms with a high death rate (or low survivorship rate) immediately following birth. Examples include bacteria, fishes, and invertebrates.

a)

Type I

b)

Type II

c)

Type III

d)

Type IV

98.

What growth model has an J-shaped curve?

a)

Logistic

b)

Exponential

99.

What growth model has an S-shaped curve?

a)

Logistic

b)

Exponential

100.

When a population has unlimited resources, and it continues to grow to its FULL LIVING POTENTIAL, it is called

a)

Peak

b)

Top shelf

c)

Resource controlled limit

d)

Biotic potential

101.

factors that affect a population depending on its size​

- these include food, predation, parasitism, and disease​

a)

Density-Dependent factor

b)

Density-Independent factors

102.

affect all populations similarly regardless of population size.​ Examples include: natural disasters, rapid climate changes (drought or floods), and human activity and disturbances ​

a)

Density-Dependent factors

b)

Density-Independent factors

103.

Which population has the greatest potential for rapid growth?

a)

Populations with a large number of middle aged individuals

b)

Older populations

c)

Populations with large numbers of young offspring

d)

None of these

104.
Any thing or organism that regulates the size of a population of another organism is known as __________.
a)
a limiting measure
b)
a limiting factor
c)
factorization
d)
materialization of precipitation
105.
What is the carrying capacity for this sheep population?
a)
1.8 million
b)
1.25 million
c)
1.6 million
d)
1.o million
106.
When a population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Continues to grow
b)
The population starts to die off to return to carrying capcity
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
107.

What point on the graph represents the carrying capacity?

a)

A

b)

B

c)

C

d)

D

108.
________ grow slowly over time, cares for its young over a long period of time and is usually near the carrying capacity of its ecosystem.
a)
K-strategists
b)
R-strategists
c)
Uniform strategists
d)
environmentalists
109.
Represents the biotic potential of the species
a)
A
b)
B
c)
D
d)
E
110.

Logistic population growth can be described as

a)

growth when resources are limited

b)

a s-shaped curve

c)

reaching carrying capacity

d)

all of the above

111.

What are the reasons why a certain species are endangered?

a)

When population is so low that it is nearly extinct.

b)

When the carrying capacity exceeds its limit.

c)

When the species lost its habitat.

d)

When a population of a species declines rapidly.

112.

It is an environmental condition that keeps a population from increasing in size.

a)

Limiting factors

b)

Carrying capacity

c)

in-breeding of species

d)

Habitat

113.

A fast rate of animal loss in a short period of time.

a)

Extinct

b)

Threatened

c)

Endangered

d)

Gone

114.

It is a group of organisms that have certain characteristics in common and are able to interbreed.

a)

Population

b)

Communities

c)

Species

d)

Biodiversity

115.

A species that have rapidly decreased its number of individuals are said to be

a)

Threatened Species

b)

Diverse Species

c)

Extinct

d)

Endangered

116.

A species in which the number of individuals falls so low that extinction is possible are said to be_______

a)

Endangered species

b)

Diverse Species

c)

Threatened Species

d)

Extinct

117.

Which of the following accelerated the rate of extinction?

a)

Human actions

b)

habitat loss due to forest fire

c)

Degradation of natural resources

d)

All of the above

118.

______________ is the competition betwen species.

a)

Interspecific Competition

b)

Behavioral Competition

c)

Mechanical Competition

d)

Geographical Competition

119.

___________ is speciation that is caused by different mating and/or courtship riturals.

a)

Mechanical

b)

Behavioral

c)

Temporal

d)

Geographic

120.

____________ is speciation caused by the species mating at different times of the year.

a)

Behavioral

b)

Mechanical

c)

Temporal

d)

Geographic

121.

Exponential growth shows a pattern increasing at a ___________ rate.

a)

growth

b)

constant

c)

inconsistent

d)

limited

122.

Populations increase exponentially and can be graphed on a ______ curve.

a)

J

b)

S

c)

M

d)

H

123.

The rate at which a species increase is its ________ potential, and this is based on its habitat requirements and reproduction rates.

a)

Life

b)

Biotic

c)

Abiotic

d)

Density

124.

___________ is an example of a Density Dependent factor.

a)

Predators

b)

Drought

c)

Flood

d)

Weather

125.

____________ is an example of a Density Independent factor.

a)

Predators

b)

Disease

c)

Floods

d)

Competition

126.

Long life expectancy usually correlates with all of the following EXCEPT:

a)

high levels of prenatal care

b)

Larger animals

c)

type 1 & 2 survivorship curve

d)

rapid reproduction

127.

What causes a J curve to flatten into an S curve?

a)

exponential growth beginning

b)

the death equals the birth rate

c)

logistic growth is beginning.

d)

limiting factors affecting the population

128.

Over-exploitation of animals is likely to cause:

a)

speciation

b)

species extinction

c)

interspecific competition

d)

behavioral isolation

129.

If the gene pool of two populations are separated, the population may develop into a new species. This is called:

a)

Natural selection

b)

Speciation

c)

Genetic separation

d)

Interspecific competition

130.

An ecologist is discussing two animals' ability to reproduce with one another. Which is he talking about?

a)

Natality

b)

Fecundity

c)

Fertility

d)

Mortality

131.

If a population has low fertility and high parental care, which type of survivorship curve would be represented?

a)

Type 1

b)

Type 2

c)

Type 3

132.

If a population has high fertility, low parental care, and a high mortality rate, which type of survivorship cure would be represented?

a)

Type 1

b)

Type 2

c)

Type 3

133.

What are survivorship curves?

a)

curves that describe the number of survivors over time

b)

curves that tell us what the limiting factors are

c)

curve that tells us about the carrying capacity

d)

a curve

134.

Why don't populations grow indefinitely?

a)

limiting factors

b)

only biotic factors

c)

only abiotic factors

d)

none of the above

135.

What is an example of a density-independent (Abiotic) limiting factor?

a)

food

b)

parasites

c)

disease

d)

pollution

136.

What is the arrow pointing at?

a)

carrying capacity

b)

biotic potential

c)

density-independent

d)

density dependent

137.

parasites, disease, predators, are examples of what type of limiting factors?

a)

density dependent

b)

density independent

c)

survivorship

d)

type 1 curve

138.

What is the carrying capacity mean?

a)

The number of individuals an area can carry

b)

the number of births

c)

The number of deaths an area has

d)

not sure

139.

One of the factors that can change the size of population is....

a)

Name of schools

b)

Number of dezs

c)

Jobs

d)

Numbers of births

140.

Why don't populations grow indefinitely?

a)

limiting factors

b)

only biotic factors

c)

only abiotic factors

d)

none of the above

141.

A pattern of survival over time in which there is high survival throughout most of the life span, but then individuals start to die in large numbers as they approach old age.

a)

Type i survivorship

b)

Type ii survivorship

c)

Type iii survivorship

142.

A pattern of survival over time in which there is low survivorship early in life with few individuals reaching adulthood.

a)

Type III survivorship

b)

Type II survivorship

c)

Type I survivorship

143.

This graph represents the _______ growth curve.

a)

Exponential

b)

Logistic

144.

What is the approximate carrying capacity on this graph?

a)

0

b)

400

c)

500

d)

600

145.

The letter that often represents carrying capacity on graphs.

(a)  

146.

Which represents a density dependent limiting factor?

a)

Disease

b)

Temperature

c)

Climate

d)

Hurricanes

147.

Which represents a density independent limiting factor?

a)

Disease

b)

Food Availability

c)

Climate

d)

Predators

148.

A population of rabbits continues to grow exponentially until the competition for grass, their food source, becomes too high. What is the limiting factor?

a)

Water

b)

Disease

c)

Food

d)

Temperature

149.

Represents exponential growth and unlimited resources.

a)

J-curve

b)

S-curve

c)

K Selected

d)

r Selected

150.

Represents logistic growth and carrying capacity.

a)

J-curve

b)

S-curve

c)

K Selected

d)

r Selected

151.

Examples: Mice, spiders, dandelions

a)

K-Selected Species

b)

r-Selected Species

152.

Examples: Elephants, humans, horses

a)

K-Selected Species

b)

r-Selected Species

153.

Are fur seals affected by limiting factors? 

a)

Yes because there is a carrying capacity

b)

No because there is no carrying capacity

154.

What is a limiting factor?

a)

Resources or other factors in the environment that can lower the population growth rate

b)

Maximum population size that can be supported in a particular area

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