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AP Environmental Science - Unit 1,2,3 Review

Total questions: 144

Worksheet time: 2hrs 35mins

Name
Class
Date
1.

Researchers examined the effect of industrialization and increased pollution (soot) in London on the coloration in a single species of moths. Birds prey on the moths that are easily visible on trees. The researchers observed moths on tree trunks and recorded their body color. The percentage of moths with light colored bodies and the percentage of moths with dark bodies is shown on the graph above. Based on the data in the graph, which of the following best describes the change in the population of moths as a result of industrialization?

a)

The percentage of dark colored moths increased in the population and the percentage of light-colored moths decreased in the population.

b)

The percentage of dark-colored moths decreased in the population and the percentage of light-colored moths increased in the population.

c)

The percentage of dark colored moths decreased in the population after 1850 and the percentage light-colored moths remained constant throughout the time period.

d)

The percentage of both the dark-colored moths and the light-colored moths remained constant throughout the time period.

2.

Based on the theory of island biogeography, which of the following islands would most likely have the highest number of species living on it?

a)

An island 30 hectares in size that is 30 kilometers off the coast of the mainland

b)

An island 30 hectares in size that is 10 kilometers off the coast of the mainland

c)

An island 10 hectares in size that is 30 kilometers off the coast of the mainland

d)

An island 10 hectares in size that is 10 kilometers off the coast of the mainland

3.

Which of the following ecosystem services are categorized as regulating?

a)

Wood fuel, medicine, and potable water

b)

Pollination, decomposition, and water purification

c)

Recreation, education, and aesthetics

d)

Photosynthesis, nutrient cycling, and creation of soils

4.

Which of the following is an example of an ecosystem that provides ecosystem services including protection from hurricane storm surges?

a)

A lock and dam system

b)

An intact coastal wetland

c)

An energy-producing tidal barrage system

d)

An offshore, deep-water fish farm

5.

Which trophic level has the least available energy in kilojoules in this food web?

a)

Phytoplankton

b)

Herbivorous zooplankton

c)

Baleen whale

d)

Killer whale

6.

The majority of the nitrogen on Earth can be found in which of the following reservoirs?

a)

Terrestrial plants

b)

Soil bacteria

c)

The atmosphere

d)

Sedimentary rock

7.

Which of the following describes the most likely change to terrestrial biomes resulting from warmer average global temperatures?

a)

The global distribution of midlatitude biomes, such as grasslands and temperate rain forests, would increase.

b)

Deciduous trees found in temperate seasonal forests would flower later in the year.

c)

The latitude range of tropical rain forests would narrow closer to the equator.

d)

High-latitude biomes, such as the tundra, would experience a decrease in net primary productivity.

8.
Which Biome has permafrost?
a)
Temperate Forest
b)
Rainforest
c)
Taiga
d)
Tundra
9.
A small marine area has phytoplankton as its only producer.  Should the marine biologist be concerned about this ecosystem?
a)
No the fish do not need the phytoplanton. Since there are so many fish, there is high biodiversity.
b)
Yes, this ecosystem has low biodiversity.  Without a producer the herbivores will die out leaving no food.
c)
Yes, this system has high biodiversity; however the fish can adapt and get food from another source.
d)
Yes, the fish will overate to get all of the phytoplankton that is left, then they will die.
10.
This is the most important thing that makes each biome different from each other.
a)
Animals
b)
Location
c)
Climate
d)
People
11.

Image "B" shows more biodiversity than image "A". Why?

a)

Because "B" shows more different species than image "A"

b)

Because image "B" has less different species than "A"

c)

"A" has a greater number of same species plants so this statement is wrong.

d)

Both images show the same biodiversity

12.
This picture is a great example of ____________ biodiversity.
a)
high
b)
moderate
c)
low
d)
hhhmmmm there is no way to know without counting.
13.
Which biome, because of its climate, has the largest number of species of plants and animals?
a)
Tundra
b)
Tropical Rainforest
c)
Desert
d)
Pineforest
14.
What is the study of the distribution of organisms around the world?
a)
geology
b)
biogeography
c)
paleontology
d)
geography
15.
Has many trees that lose all their leaves to save water
a)
coniferous forest
b)
tundra
c)
temperate grassland
d)
temperate deciduous forest
16.

This is an example of

a)

High species diversity

b)

Low species diversity

c)

High genetic diversity

d)

High ecosystem diversity

17.

Whish habitat has the highest biodiversity?

a)

Area A

b)

Area B

c)

Area C

d)

Area D

18.

Which of the following best describes the importance of species diversity?

a)

It ensures that all ecosystems are identical

b)

It contributes to the resilience and productivity of ecosystems

c)

It guarantees that specific species will not become extinct

d)

It reduces the need for conservation efforts

19.

Which of the following is NOT an ecosystem service?

a)

Pollination of crops

b)

Decomposition of waste

c)

Production of greenhouse gases

d)

Purification of water

20.

Choose all the reasons why biodiversity is beneficial to humans and the ecosystem (4).

a)

Limits damage from coastal flooding

b)

Provides resources like lumber and medicine

c)

Decreases survival after an environmental stressor

d)

Decreases pollution

e)

Creates natural pest control and pollinators

21.

What role do bees play in ecosystem services?

a)

They contribute to soil erosion

b)

They act as invasive species in most ecosystems

c)

They pollinate plants, which is essential for the production of fruits and seeds

d)

They primarily consume decomposing organic matter

22.

I am walking through a park and enjoying nature. This is an example of what kind of ecosystem service?

a)

Cultural service

b)

Regulating service

c)

Nature walk

d)

Supporting service

23.

Access to new medicines, agriculture, and ecosystem resiliency are all examples of...

a)

benefits of biodiversity

b)

threats to biodiversity

c)

ecosystem services

d)

conservation biology

24.

What are ecosystem services?

a)

Benefits that people obtain from ecosystems

b)

Harmful effects of ecosystems on people

c)

Artificially created benefits for ecosystems

d)

Products obtained from ecosystems

25.

Maintaining a clean water supply would be an example of:

a)

natural resources

b)

invasive species

c)

interactions between organisms

d)

ecosystems services

26.

Which of the following is an example of an ecosystem service?

a)

Mobile phone repair

b)

Pollination

c)

Car manufacturing

d)

Hairdressing

27.
What is biodiversity?
a)
The number of predators in an ecosystem
b)
The amount of water in an ecosystem
c)
The variety of life in an area
d)
The size of an ecosystem
28.

Which of these is NOT a type of ecosystem service provided by nature?

a)

Provisioning Services

b)

Supporting Services

c)

Technological Services

d)

Regulating Services

e)

Cultural Services

29.

Which of the following is an example of a cultural ecosystem service?

a)

Nutrient cycling

b)

Spiritual enrichment

c)

Soil formation

d)

Water regulation

30.

Which of the following is an example of a provisioning ecosystem service?

a)

Pollination of crops

b)

Production of fresh water

c)

Regulation of climate

d)

Decomposition of waste

31.

Which of the following is a supporting service provided by ecosystems?

a)

Climate regulation

b)

Pollination

c)

Soil formation

d)

Food production

32.

Which is NOT an example of an ecosystem service?

a)

Clean air

b)

Natural pest control

c)

The logging industry

d)

Clean water

33.

What does species diversity refer to in an ecosystem?

a)

The number of different habitats within a particular area

b)

The variety of species within a specific habitat

c)

The genetic variation within a single species

d)

All of the above

34.
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
35.
Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
36.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
37.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 
a)
parasitism
b)
commensalism
c)
mutualism
38.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source. 
39.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
40.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
41.

How would a reduction in the snail population effect this ecosystem?

a)

It would cause decreased competition between spiders and owls.

b)

It would cause decreased competition between spiders and wood mice.

c)

It would cause increased competition between grasshoppers and beetles.

d)

It would cause increased competition between wood mice and shrews.

42.
In this energy pyramid, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
43.

Termites are tiny insects that can cause severe damage to homes and other structures that consist of wood. Termites are an example of what type of factor.

a)

Biotic

b)

Abiotic

44.
Ants protect soft bodied aphids and in return the aphids feed the ants a sugary drink. What is the ecological relationship?
a)
Cooperation
b)
Parasitism
c)
Commensalism
d)
Mutualism
45.
Bears eat fish, insects, plants, seeds, nuts and young elk. They are called __________.
a)
Franivore
b)
Carnivore
c)
Herbivore
d)
Omnivore
46.

Which of the following best explains how environmental stressors, such as wildfires, can affect biodiversity in an ecosystem?

a)

After an environmental stress, a genetic bottleneck may occur, which will increase genetic diversity.

b)

Habitat diversity will increase the available niches if the landscape becomes more uniform after a disturbance.

c)

Ecosystems with more species diversity are more likely to recover after a disturbance than ecosystems with low species diversity.

d)

Smaller populations are less likely to go extinct than larger populations, so the species diversity will remain constant.

47.

What is genetic diversity?

a)

Diversity within a species

b)

# of species and abundance in the community

c)

How many different habitats are in a region

48.

What is habitat diversity?

a)

Diversity within a species

b)

# of species and abundance in the community

c)

How many different habitats are in a region

49.

What is species diversity?

a)

Diversity within a species

b)

# of species and abundance in the community

c)

How many different habitats are in a region

50.

Ecosystem services that give humans products and what they need to survive, like food and lumber are called

a)

Provisioning Services

b)

Regulating Services

c)

Cultural Services

d)

Supporting Services

51.

Ecosystem services that indirectly benefit humans , such as plants cleaning air and bees pollinating plants are called

a)

Provisioning Services

b)

Regulating Services

c)

Cultural Services

d)

Supporting Services

52.

Ecosystem services that that support human life and life on Earth such as producing oxygen and water cycling are called

a)

Provisioning Services

b)

Regulating Services

c)

Cultural Services

d)

Supporting Services

53.

The Theory of Island Biogeography states that

a)

There are more species on islands that are smaller and farther from the mainland.

b)

There are more species on islands that are smaller is

and closer to the mainland.

c)

There are more species on islands that are larger and closer to the mainland.

d)

There are more species on islands that are larger and farther from the mainland.

54.

Organisms, like koalas, that require specific habitats and food are called

a)

specialist

b)

generalist

55.

Organisms, like cockroaches, that can live in many places and eat many things are called

a)

specialist

b)

generalist

56.

The total range of conditions conditions (abiotic factors) that an organism can lived in is called _____________.

a)

Succession

b)

Environmental disturbance

c)

Ecological tolerance

d)

limiting factors

57.

What is the difference between primary and secondary succcession?

a)

Primary succession already has soil

b)

Lichen and moss come in for secondary succession

c)

Secondary succession already has soil

d)

Climax community is achieved quickly in primary succession

58.

An example of a r-strategist (-selected) species is

a)

an elephant

b)

a human

c)

a whale

d)

an eagle

e)

a dandelion

59.

The main cause of biodiversity loss worldwide is

a)

extinctions

b)

invasive species

c)

pollution

d)

habitat destruction

60.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C
61.

Which of the following is an example of tragedy of the commons?

a)

The use of a private natural gas well.

b)

Requiring a hunting license for public lands.

c)

Dumping garbage over the side of a hill along the road.

d)

Overfishing at a private lake.

62.

The production of fertilizers for agricultural use are most associated with which of the following greenhouse gases?

a)

methane

b)

CFCs

c)

POPs

d)

Nitrous oxide

63.

As biological oxygen demand increases, which of the following will decrease?

a)

Dissolved oxygen (DO)

b)

Carbon dioxide

c)

Methane

d)

Nitrogen

64.

Solar panels will work best in most locations when facing which direction?

a)

North

b)

South

c)

East

d)

West

65.

Which can produce more electricity?

a)

Passive solar energy systems

b)

Active solar energy systems

66.

The best example of habitat fragmentation is:

a)

People putting a road through the middle of a habitat.

b)

People cutting down trees on the edge of a forest to build a house.

67.

As a predator population increases, the prey population will most likely

a)

exceeds its carrying capacity

b)

stay the same

c)

increase

d)

decrease

68.

What is a disadvantage of reintroducing a species to an area?

a)

Human conflict.

b)

Other animal populations will be kept in check.

c)

There are no disadvantages

69.

What is acid deposition?

a)

The accumulation of acidic compounds on Earth; usually associated with SO2 and NOx

b)

The removal of acidic compounds on Earth; usually associated with SO2 and NOx

c)

The accumulation of substances above the pH of 7

d)

The removal of substances above the pH of 7

70.

Integrated Pest Management (IPM) can include (select all the apply)

a)

Physical removal by hand of unwanted species

b)

Mechanical removal by trapping unwanted species

c)

The use of an abundance of pesticides.

d)

Monoculture

71.

Dissolved oxygen of water decreases as

a)

Temperature of the air increases

b)

Temperature of the water decreases

c)

Temperature of the water increases

72.

The cattle egret follows herds of cattle and eat the insects that the cattle stir up as they move through the grassland. The cattle appear to be unaffected by the egrets. This is a _____ type of relationship.

a)

Commensalism

b)

Parasitism

c)

Symbiotic

d)

Mutualism

73.

A positive feedback loop occurs

a)

when a system responds to a change by returning to its original state

b)

when feedback into a system decreases a rate of response

c)

when a system is in a steady state

d)

when feedback into a system increases a rate of response

74.

Which best describes the concept of net primary production?

a)

total amount of energy available from the Sun

b)

total amount of cellular respiration conducted within an ecosystem

c)

energy captured minus energy lost

d)

total amount of energy available from the producer

75.

In which biome would you expect to find an area with an average temperature of 10oC and 200 cm of precipitation annually?

a)

Temperate seasonal forest

b)

Temperate rainforest

c)

Woodland/shrubland

d)

Tropical seasonal forest

76.

In which biome would you expect to find an area with an average temperature of 4oC and 50 cm of precipitation annually?

a)

Tundra

b)

Boreal forest

c)

Temperate grassland/cold desert

d)

Woodland/shrubland

77.

Terrestrial biomes are defined by ____ and ____ variables.

a)

temperature; precipitation

b)

temperature; animals

c)

precipitation; plants

d)

animals; plants

78.

An experiment is designed to determine if wheat grows better when it is planted alone or with clover. The design calls for 3 pans of each treatment. Pans A, B, and C contain only wheat. Pans D, E, and F contain clover and wheat planted in alternating rows. Each pan contains a total of

100 seeds. All treatments contain the same type of soil, are planted in the same size pan, are exposed to the same amount of sunlight, and are maintained at the same temperature throughout the course of the experiment.


Which statement provides a hypothesis for this experiment?

a)

Wheat grows better when planted alone than when planted together with clover.

b)

Clover grows better when planted alone than when planted together with clover.

c)

Wheat grows better when planted together with soy beans.

d)

Clover grows better when planted together with wheat.

79.

A community contains

a)

only one species

b)

multiple species

c)

living and non-living components

d)

all the similar biomes across the world

80.

A population contains

a)

only one species

b)

multiple species

c)

living and non-living components

d)

all the similar biomes across the world

81.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source. 
82.
A secondary consumer 
a)
eats primary consumers
b)
eats producers
c)
eats plants
83.

Which of the following statements is true?

a)

Primary succession is followed by secondary succession

b)

Primary succession occurs over a shorter time span

c)

Forest fires and hurricanes lead to primary succession because a soil base still exists

d)

Volcanoes creating igneous rock formations lay based for primary succession to take place

84.

Which is true of the location above?

a)

It has low species richness

b)

It has low species evenness

c)

It has high species evenness

d)

It has both low species evenness and richness

e)

None of these

85.

When a spruce tree is harvested so the wood can be used to build a house, the tree is providing

a)

a cultural service.

b)

a provision.

c)

an intrinsic value.

d)

a monetary unit.

86.

Bees are important to ecosystems and humans because they provide

a)

a regulating service through the pollination of crops.

b)

a regulating service that increases crop yields.

c)

a support system through the pollination of food crops.

d)

a support system through promoting biodiversity of crops.

87.
What is the goal of the pioneer species in Primary Succession?
a)
To kill the dead materials after a disaster
b)
To rebuild soil
c)
To feed Johnny
d)
To put fresh oxygen into the air
88.

What type of species/community is a redwood forest?

a)

Climax Community

b)

Pioneer Species

c)

Intermediate Species

d)

Tertiary Community

89.

Which type of survivorship curve represents an k-selected species?

a)

Type I survivorship curve

b)

Type II survivorship curve

c)

Type III survivorship curve

90.

Which type of survivorship curve represents animals that have constant mortality?

a)

Type I

b)

Type II

c)

Type III

91.

The definition of fecundity is...

a)

number of offspring

b)

amount of generation time

c)

the carrying capacity

d)

exponential growth

92.

A J-curve represents

a)

exponential growth

b)

logistic growth

c)

no growth

93.

Which type of species would you expect to have a s-curve graph?

a)

k-selected

b)

r-selected

c)

s-selected

94.

What type of plate boundary is shown here?

a)

Convergent

b)

Subduction

c)

Divergent

d)

Transform

95.

Which soil particle is largest in diameter?

a)

Clay

b)

Silt

c)

Sand

d)

Loam

96.

Which gas is there the most of in the atmosphere?

a)

Oxygen

b)

Nitrogen

c)

Water vapor

d)

Carbon dioxide

97.

ENSO events take place in which ocean basin?

a)

Atlantic

b)

Indian

c)

Pacific

d)

Arctic

98.

Why does the Earth have seasons?

a)

Tilt of the Earth on its axis

b)

Earth's shape

c)

Earth's rotation around the Sun

d)

Earth's rotation on its own axis

99.

Which of the following would NOT lead to a decrease in TFR?

a)

Increased access to birth control

b)

Increased women's rights

c)

Increased access to education

d)

Improved drinking water

100.

Surface Mining and Control Reclamation Act

a)

mandates that miners give half of what they find to the government

b)

allows miners to place a stake on public land for $5 per acre

c)

mandates reclamation

d)

is meant to bankrupt mining companies

101.

An ecological footprint is

a)

The amount of wilderness available on the earth

b)

The amount of biologically productive land and water a person uses

c)

A measure of the earth's biological capacity

d)

A measure of a person's contribution to creating a sustainable environment

102.

A mechanism for preventing erosion by planting a row of trees adjacent to farmland

a)

windbreaks

b)

contour plowing

c)

groundcover crops

d)

no till agriculture

103.

Integrated pest management is likely to use all of the following EXCEPT

a)

crop rotation

b)

intercropping

c)

planting herbicide resistant crops

d)

using traditional chemical pesticides

104.

Which is NOT a contaminant associated with CAFOs?

a)

Nitrogen

b)

Phosphorus

c)

Oil spills

d)

E. coli

105.

Thermal inversion can be caused by

a)

Cold air from an ocean

b)

The geographic features like mountains surrounding a city.

c)

A bowl shape area

d)

All of these can cause thermal inversion

106.

Thermal inversion can cause pollutants to be held close the ground level.

a)

True

b)

False

107.

What does the whole right side of the population pyramid represent?

a)

Males

b)

Females

c)

Unemployed

d)

Young people

108.

What age group does the top of the population pyramid represent?

a)

The working people

b)

The rich people

c)

The elderly

d)

The young people

109.

What age groups does the bottom of a population pyramid represent?

a)

The elderly

b)

The working adults

c)

The children

d)

Males

110.

Does this age structure diagram show a country with

a)

Rapid Growth

b)

Decreasing Growth

c)

Zero Growth

111.

Does this age structure diagram show a country with

a)

Zero Growth

b)

Rapid Growth

c)

Decreasing Growth

112.

Does this age structure diagram show a country with

a)
Rapid Growth
b)

Decreasing Growth

c)

Zero Growth

113.

Which of the following age structure diagrams demonstrates zero growth in the population?

a)

b)

c)

d)

none of the above

114.

Which of the following age structure diagrams demonstrates decreasing growth in the population?

a)

b)

c)

d)

none of the above

115.

Which of the following age structure diagrams demonstrates POSITIVE, RAPID growth in the population?

a)
b)
c)
d)

none of the above

116.

Which country will have the most rapid population growth?

a)

Sweeden

b)

United States

c)

Mexico

d)

None

117.

Does this age structure diagram show a country with

a)

Rapid Growth

b)

Zero Growth

c)

Decreasing Growth

118.

Does this age structure diagram show a country with

a)
Rapid Growth
b)

Zero Growth

c)

Decreasing Growth

119.

Does this age structure diagram show a country with

a)

Rapid Growth

b)

Zero Growth

c)

Decreasing Growth

120.

Does this age structure diagram show a country with

a)

Rapid Growth

b)

Zero Growth

c)

Decreasing Growth

121.

Does this age structure diagram show a country with

a)

Rapid Growth 

b)

Zero Growth

c)

Decreasing Growth

122.

Does this age structure diagram show a country with

a)

Decreasing Growth

b)

Zero Growth

c)

Rapid Growth

123.
Why has the world population dramatically increased?
a)
Better medicine
b)

Better sanitation (access to clean water)

c)
Better technology
d)
All of the above
124.

Predict the future population growth of this country.

a)

Negative Growth (the population will shrink)

b)

Slow/No Growth (the population will stay about the same)

c)

Fast Growth (the population will explode)

125.

Which of the following characteristics is most closely associated with a country that demonstrates the age structure diagram show above?

a)

There is a low infant mortality rate

b)

A high percentage of the population has access to medical care

c)

There is a low population growth

d)

There is a high total fertility rate

126.

What type of age structure diagram represents a population with negative growth rate?

a)
b)
c)
d)
e)
127.

Represents the maximum number of individuals that can be supported by a particular ecosystem on a long-term basis

a)

A

b)

B

c)

C

d)

D

e)

E

128.

Which of the following is a true statement about the total fertility of a society?

a)

The total fertility of a society is the difference between the crude birth rate and the crude death rate.

b)

The total fertility of a society is the number of children necessary for a couple to replace themselves in the next generation.

c)

The total fertility of a society is positively correlated with the average education of women.

d)

The total fertility of a society is negatively correlated with the number of women of child-bearing age.

e)

The total fertility of a society decreases as the society progresses through the demographic transition.

129.

Which of the following is most typically associated with the transition from a rural to an urbanized society?

a)

Reduced birth rates

b)

Reduced need for sewage-treatment facilities

c)

Increased rates of population growth

d)

Increased air quality in urban areas

e)

Increased stabilization of microclimate in urban areas

130.

If a country has a crude birth rate of 24 per 1,000 and a crude death rate of 8 per 1,000, the natural annual percent increase of its population is

a)

0.6%

b)

1.6%

c)

3%

d)

16%

e)

32%

131.

The total fertility rate in country A was 6.8 in 1980. Which of the following statements best supports the change in the total fertility rate in country A between 1980 and 2015?

a)

The total fertility rate increased as a result of improved health care and better nutrition.

b)

The total fertility rate remained constant even though there was improved access to clean water.

c)

The total fertility rate decreased as a result of a delay in age of first marriage and increased contraceptive use.

d)

The total fertility rate decreased as a result of increased infant mortality rate.

132.

Members of an r-selected species characteristically

a)

grow slowly

b)

produce few offspring

c)

reach sexual maturity quickly

d)

have long life spans

e)

are very protective of their offspring

133.

Which of the following characteristics in the table best supports the claim that:

Country A is a more developed country and that Country

B is a less developed country?

a)

population size

b)

land area

c)

infant mortality rate

d)

net migration rate

134.

The crude growth rate, r , of a population is calculated by

a)

multiplying the existing population size by life expectancy

b)

dividing the crude birth rate by 2

c)

dividing the doubling time by 70

d)

adding the crude birth rate to the crude death rate

e)

subtracting the crude death rate from the crude birth rate

135.

Cycads are gymnosperms that were diverse and abundant during the Mesozoic era. Extant species of cycads share many traits with those from the Mesozoic era. Cycads bear cones, are long-lived with slow growth rates, show late reproductive maturity, and have very few offspring. Based on this description, the cycads are

a)

K-strategists with a Type I survivorship curve.

b)

r-strategists with a Type III survivorship curve.

c)

K-strategists with a Type III survivorship curve.

d)

r-strategists with a Type II survivorship curve.

136.

In a certain country, the birth rate is high, the death rate is high, and there are many children that are part of the workforce. The country is most likely in which of the following stages of the demographic transition?

a)

Stage 1

b)

Stage 2

c)

Stage 3

d)

Stage 4

137.

During which stage of the demographic transition shown above does a population begin to experience an explosive increase in growth?

a)

Stage 1

b)

Stage 2

c)

Stage 3

d)

Stage 4

e)

After Stage 4

138.

In a human population undergoing the demographic transition, which of the following generally decreases first?

a)

Birth rate

b)

Death rate

c)

Average family size

d)

Life expectancy

e)

Level of education

139.

If the population of a country grows at a rate of approximately 5 percent per year, the number of years required for the population to double is closest to

a)

5 years

b)

10 years

c)

15 years

d)

25 years

e)

35 years

140.

Factors that affect the total fertility rate of a human population include which of the following?

I. Cultural traditions

II. Government policies and economic incentives

III. Education level and economic opportunities for females

a)

I only

b)

II only

c)

I and II

d)

II and III

e)

I, II and III

141.

Tracks organisms that tend to live long lives (low death rate and high survivorship rate); toward the end of their life expectancies, however, there is a dramatic increase in the death rate.

a)

Type I

b)

Type II

c)

Type III

d)

Type IV

142.

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

143.

These organisms have short life spans, are generally small, quick to mature and waste a lot of energy. Typical examples include salmon, corals, insects and bacteria.

a)

K-strategist

b)

r-strategist

c)

m-strategist

d)

s-strategist

144.

These organisms typically live in unstable, unpredictable environments & are able to reproduce rapidly (exponentially). They do not take care of their young & are subject to predation.

a)

K-strategist

b)

r-strategist

c)

m-strategist

d)

s-strategist