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REVIEW: Ecology 3 (Human Impact, CC and Succession)

Total questions: 128

Worksheet time: 2hrs 11mins

Name
Class
Date
1.

1. What are renewable resources?

a)

. Resources that are used faster than they form

b)

resources that can replenish themselves over time

c)

resources that formed over millions of years

d)

resources that exist only in rural areas

2.

According to the graph, what material’s recycling would reduce the largest portion of America’s trash?

a)

Metals

b)

paper

c)

plastics

d)

Yard trimmings

3.

1. Which biome has the highest biodiversity and is the most threatened?

a)

Temperate forests

b)

grasslands

c)

tropical rain forests

d)

deserts

4.

1. Why is firewood considered to be a renewable resource?

a)

It can be replenished over time.

b)

It is used up faster than it can form.

c)

It is made from coal.

d)

It can be made synthetically.

5.

1. Why has Earth's human carrying capacity increased greatly?

a)

Other organisms have been displaced by agriculture, so there is more space for humans.

b)

Humans have modified their environment due to technological advances.

c)

Humans can live closer together than other animals

d)

Humans are now eating fewer plants than they used to.

6.

1. Which of the following is not a renewable resource?

a)

coal

b)

wind energy

c)

solar energy

d)

water

7.

1. What factor does not determine the size of an individual's ecological footprint?

a)

amount and efficiency of resource use

b)

amount of waste produced

c)

size of population

d)

toxicity of waste produced

8.

How might an introduced plant species kill native plant species?

a)

. Its rapid growth can deprive native plants of sunlight.

b)

Its rapid growth can deprive native plants of food.

c)

It can cause soil loss from erosion.

d)

Its rapid growth can deprive native plants of oxygen.

9.

1. What is one of the greatest threats to biodiversity on Earth?

a)

habitat destruction

b)

loss of drinking water

c)

decrease in food supply

d)

pollution

10.

1. Why might an introduced animal species overrun native species in an ecosystem?

a)

. Its population size is smaller than those of native species.

b)

. It is more energy efficient, so it eats less food.

c)

It is a predator of the native species.

d)

It often has no natural enemies

11.

1. Why might an introduced animal species overrun native species in an ecosystem?

a)

. Its population size is smaller than those of native species.

b)

. It is more energy efficient, so it eats less food.

c)

It is a predator of the native species.

d)

It often has no natural enemies

12.

Which term describes the practice of managing resources so that current needs are met without harming future generations?

a)

species introduction

b)

sustainable development

c)

habitat fragmentation

d)

biomagnification

13.
The process in which plants use energy from the sun to convert carbon dioxide and water into oxygen and glucose.
a)
respiration 
b)
decomposition
c)
photosynthesis
d)
combustion
14.
What type of succession starts with bare rock?
a)
primary succession
b)
secondary succession
15.
What type of succession starts with soil?
a)
primary succession
b)
secondary succession
16.
Which is a pioneer species?
a)
trees
b)
flowers
c)
mushrooms
d)
lichen
17.
Which is a cause of climate change?
a)
melting of sea ice
b)
cutting down trees
c)
severe storms 
d)
changes in plant life 
18.
What is biodiversity?
a)
a population of a species 
b)
the growth of cities
c)
destruction of natural habitats
d)
a variety of organisms 
19.
What is one way to prevent climate change?
a)
avoid dumping in storm drains
b)
turn off electricity when you are not using it
c)
pick up after your pet's litter
d)
open windows 
20.
Base you answer on the table below.
(Click Here To View)
Which inference can be made from the graphs?
a)
A) The increase in sewage waste from 1950 to 1970 was due to a decreasing human population.
b)
B)The decrease in sewage waste shows that the environmental problems associated with land pollution have been solved.
c)
C)Sewage waste is a good source of nutrients for most fish.
d)
D)Increases in sewage waste were responsible for decreasing oxygen levels in the lake.
21.
A growing mass of plastic garbage is collecting in an area of the Pacific Ocean. This is caused by plastic garbage that is discarded by people, and it ends up in rivers that carry it to the ocean. Over time, ocean currents cause it to accumulate in this area of the Pacific. Currently, the mass is estimated to cover an area of ocean twice the size of Texas. As these plastics slowly break down, chemicals enter the water, and can enter ocean organisms that we might eventually use for food. This sequence of events illustrates that
a)
A)humans modify ecosystems as a result of population growth, consumption, and technology
b)
B)human activities that degrade ecosystems result in an increase in diversity of ecosystems
c)
C) when humans alter ecosystems by adding specific organisms, serious consequences could result
d)
D)industrialization brings a reduced demand for fossil and nuclear fuels
22.
Recent evidence indicates that lakes in large areas of New York State are being affected by acid rain. The major effect of acid rain in the lakes is
a)
A) an increase in game fish population levels
b)
B) the stimulation of a rapid rate of evolution
c)
C) the elimination of many species of aquatic life
d)
D) an increase in agricultural productivity
23.
Many homeowners and businesses are installing solar electric systems. Greater use of solar electric systems benefits the environment because it
a)
A) depends on the greater use of fossil fuels
b)
B) conserves nonrenewable resources
c)
C) produces gases that cause global warming
d)
D) reduces the need for the ozone shield
24.
Some time ago, there were thousands of California condors in North America. Large numbers were poisoned from lead in bullets that were used to kill the animals the condors fed on. An effort was made to help save this large scavenger. There are now more than 350 California condors in North America. The condors most likely increased in number because humans decided to
a)
A) produce lead-resistant condors through asexual reproduction
b)
B) pass laws against using lead bullets to kill animals used by condors for food
c)
C) introduce plants that didn't absorb the lead from discharged bullets
d)
D) produce lead-resistant prey for the condors through genetic engineering
25.
Nonrenewable resources are
a)
A) not finite and are not depleted over time
b)
B) not finite and are depleted over time
c)
C) finite and are not depleted over time
d)
D) finite and are depleted over time
26.
Car manufacturers have begun to explore the use of biofuels, such as biodiesel, ethanol, and cooking oils made from plant material. The desired outcome of using these biofuels would be
a)
A) a decrease in the use of fossil fuels
b)
B) a decrease in the release of oxygen gas
c)
C) an increase in abiotic resources
d)
D) an increase in global warming
27.
Many scientists are worried about some of Earth’s finite resources because humans are
a)
A) using carbon dioxide faster than it is being produced
b)
B) placing industrial wastes in landfills
c)
C) interfering with energy flow from consumers to producers
d)
D) using large amounts of some materials that cannot be renewed
28.
People living in and around the Amazon rain forest have used parts of the gaviola tree to prepare medicines. Research is being conducted to determine if this tree can provide cures for many types of cancer. Continued destruction of rain forests might
a)
A) reduce biodiversity and remove organisms with the potential to help humans
b)
B) increase biodiversity and remove damaged and diseased trees
c)
C) reduce biodiversity and increase the reproductive rates of all organisms
d)
D) increase biodiversity and ecosystem stability where humans plant crops
29.
A human activity that could significantly decrease the amount of carbon dioxide in the air is
a)
A) increasing the use of fossil fuel
b)
B) controlling insect pests that eat stored grain
c)
C) burning garbage and trash to generate electricity
d)
D) preserving and expanding forest habitats that shelter wildlife
30.
The finite resources of Earth are often affected by increasing human consumption. These finite resources are
a)
A) not renewable over a short period of time
b)
B) the products of rapid human population growth
c)
C) the result of deforestation
d)
D) needed to degrade ecosystems
31.
The overuse of chemical fertilizers has resulted in the growth of some lawns in which decomposers cannot live. This would interfere most directly with the ability of the lawn ecosystem to
a)
A) recycle energy
b)
B) recycle nutrients
c)
C) maintain atmospheric pH
d)
D) reduce biodiversity
32.
Which environmental change would cause the greatest reduction in the biodiversity of a large ecosystem?
a)
A) building a new home
b)
B) building a new store in a shopping mall
c)
C) widespread use of pesticides
d)
D) widespread recycling prograrns
33.
An alternative to the use of insecticides to combat the Mediterranean fruit fly is the Sterile Insect Technique (SIT). SIT involves the sterilization of male insects by radiation, which prevents the formation of functional male gametes. When these male insects mate with female insects of the same species, the result would be that
a)
A) only female offspring would be produced
b)
B) no offspring would be produced
c)
C) the offspring would have a reduced number of chromosomes
d)
D) the offspring would no longer be sterile
34.
Which farming practice causes the least harm to the environment?
a)
A) using natural predators to reduce insect numbers
b)
B) adding chemical fertilizers to all the crops in the area
c)
C) planting the same crop for 1 year on all the fields in the area
d)
D) planting the same crop in the same field each year for 10 years
35.
The diagram below represents how air pollution may move across the eastern United States.
In order to reduce the amount of air pollution in Pennsylvania, which change is necessary?
a)
A) Laws must be passed to protect endangered species.
b)
B) The use of natural resources must be increased.
c)
C) More coal-burning power plants must be built.
d)
D) The cooperation between the different states must be improved.
36.
The diagram below represents factors that affect New York State ecosystems.
(Click Here To View) 
An increase in human activity at X would most likely result in
a)
A)  a decrease in rainfall in the area
b)
B) a decrease in available carbon dioxide
c)
C) an increase in air pollution in the area
d)
D) an increase in the supply of fossil fuels
37.
The first living things to grow successfully on a newly formed sand dune are known as
a)
A) saprophytes
b)
B) pioneer organisms
c)
C) carnivorous plants
d)
D) heterotrophs
38.
Base your answer on the chart below.
(Click Here To View)
Which stage represents a pioneer community?
a)
A
b)
B
c)
C
d)
D
39.
Events that occur in four different ecosystems are shown in the chart below.
(Click Here To View)
Which ecosystem would most likely require the most time for ecological succession to restore it to its original state?
a)
A
b)
B
c)
C
d)
D
40.
Lichens are composed of two organisms, a fungus that cannot make its own food and algae that contain chlorophyll. Lichens may live on the bark of trees or even on bare rock. They secrete acids that tend to break up the rock they live on, helping to produce soil. As soil accumulates from the broken rock and dead lichens, other organisms, such as plants, may begin to grow.
a)
A) biological evolution
b)
B) ecological succession
c)
C) maintenance of cellular communication
d)
D) differentiation in complex organisms
41.
The diagram below represents a process that occurs in nature.
(Click Here To View)
If the oak and hickory trees were burned in a forest fire, leaving bare soil, which group of plants would most likely be the first to grow back?
a)
A) crabgrass and horseweed
b)
B) oak and hickory trees
c)
C) broomsedge and pine seedlings
d)
D) mature pine and young deciduous trees
42.
Base your answer to question on the diagram below and on your knowledge of biology.
(Click Here To View) 
What information would be appropriate to add to box X in order to complete the diagram?
a)
A) cellular respiration by humans
b)
B) simple sugar
c)
C) oxygen
d)
D) burned by automobiles
43.

The graph below shows data on human population growth.

(Click Here To View)

The trend shown on the graph would most likely result in

a)

A) a decreased demand for deforestation

b)

B) an increase in available freshwater

c)

C) a decrease in air pollution

d)

D) an increased demand for land use

44.
Which action by humans could improve the quality of the air?
a)
A) building homes that use only oil furnaces for heat
b)
A) building homes that use only solar energy for heat
c)
C) increasing the number of coal-burning power plants that generate electricity
d)
D) cutting down forests to clear land for factories
45.
As water flows downhill, its energy can be used to generate electricity. Later, this water may evaporate, fall as rain, and be used again to generate electricity in the same way. This explains why electricity generated with water is considered
a)
A) a source of water pollution
b)
B) a renewable form of energy
c)
C) more expensive than nuclear energy
d)
D) responsible for global warming
46.
The graph below shows how the level of carbon dioxide in the atmosphere has changed over the last 150,000 years.
Which environmental factor has been most recently affected by these changes in carbon dioxide level?
a)
A) light intensity
b)
B) types of decomposers
c)
C) size of consumers
d)
D) atmospheric temperature
47.
The graph shows the number of species that have become extinct since 1800. It also shows the change in the size of the human population for the same period of time. 
The rapid increase in human population between 1960 and 2010 is most likely the direct result of advances in
a)
A) medical technology
b)
B) space exploration
c)
C) communication technology
d)
D)  transportation technology
48.
The graph shows the number of species that have become extinct since 1800. It also shows the change in the size of the human population for the same period of time.
(Click Here To View) 
The graph indicates that the number of species that have become extinct
a)
A) has increased with increasing human population
b)
B) has decreased with increasing human population
c)
C) is not affected by the size of the human population
d)
D) is greater than the size of the human population
49.

What term describes using resources in a way that will NOT completely deplete our future supply?

a)

conserving

b)

polluting

c)

abusing

d)

recycling

50.

All of the following are nonrenewable resources EXCEPT

a)

coal

b)

trees

c)

petroleum (oil)

d)

natural gas

51.

Where does MOST of Earth's energy come from?

a)

Space

b)

The core of the Earth

c)

The Sun

d)

The atmosphere.

52.

The widespread cutting down of trees is called...

a)

Erosion

b)

Restoration

c)

Deforestation

d)

Pollution

53.

The introduction of pollutants into the environment is .....

a)

waste

b)

pollution

c)

pesticides

d)

erosion

54.

Which of these is a major contributor to air pollution?

a)

Indoor air pollutants

b)

Rain

c)

Sunlight

d)

Fossil Fuels

55.

What is the difference between a renewable resource and a nonrenewable resource?

a)

Renewable is infinite and nonrenewable is finite.

b)

Renewable is finite and nonrenewable is infinite.

c)

Renewable and nonrenewable are the same.

d)

Renewable and nonrenewable resources aren't needed by humans.

56.

What do agriculture and urbanization have in common?

a)

They have nothing in common.

b)

They both have positive impacts on the environment.

c)

They both can destroy natural habitats

d)

They both involve building subdivisions.

57.

Reasons the human population increased so rapidly was due to....

a)

Better hygiene and sanitation

b)

More food to feed more people (agricultural productivity)

c)

Industrial and technological advancments

d)

All of these

58.

Which of the following is NOT a negative effect of the human population growth?

a)

Increased energy demand

b)

Increased waste

c)

Increased development of new technologies

d)

Increased demand on Earth's resources

59.

Which countries in the world have the largest populations?

a)

India and America

b)

India and China

c)

China and Australia

d)

China and America

60.

What is the most obvious way to reduce your carbon footprint?

a)

Reduce the amount of resources you are using

b)

Increase your use of technology

c)

Leave the water running when brushing your teeth

d)

Leave your lights on all night long

61.

Cultivation of plants and animals for food, medicine, and other products

a)

domestication

b)

agriculture

c)

mining

d)

urbanization

62.

Converting natural habitats into urban areas

a)

Agriculture

b)

Domestication

c)

Mining

d)

Urbanization

63.

Avoid using a resources or limiting consumption of it

a)

Reduce

b)

Reuse

c)

Recycle

d)

Sustain

64.

Using Earth's resources at a rate that doesn't deplete them

a)

Reduce

b)

Reuse

c)

Conservation

d)

Sustainability

65.

Wise management of resources and preservation of ecosystems and biodiversity

a)

Conservation

b)

Sustainability

c)

Reduce

d)

Recycle

66.

Discard a product in a way that it can be used again

a)

Regrow

b)

Reduce

c)

Reuse

d)

Recycle

67.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
68.
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
69.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
ecological succession
c)
secondary succession
d)
intermediate
70.
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
71.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
72.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
73.
What are examples of pioneer species in a primary succession?
a)
Bushes and Shrubs
b)
Oak trees
c)
Mossess and Lichens 
d)
A rose Bush
74.
After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?
a)
Lichens → Shrubs → Grasses → Trees
b)
Lichens → tree → shrubs→Grasses
c)
Grasses → Lichens → Shrubs → Trees
d)
Lichens → Grasses → Shrubs → Trees
75.
the process by which a new community forms where no community lived before 
a)
resource
b)
invasive (non- native) species
c)
primary succession
d)
competition
76.
What is the correct order from oldest (happened first) to youngest (happened last) in this pond succession?
a)
A, B, C, D
b)
D, C, B, A
c)
B, A, D, C
d)
C, D, A, B
77.
Reaches a climax community quicker because soil is already present
a)
primary succession 
b)
secondary succession
c)
both types of succession
78.
Succession type?
a)
primary succession
b)
secondary succession
c)
tertiary succession
d)
variable succession
79.
What is the most important function of pioneer species?
a)
To create rocks
b)
To create soil and add nutrients to the environment 
c)
To look nice
d)
Food for animals 
80.
this type of succession occurs after a forest fire
a)
primary succession
b)
secondary succession
c)
both
81.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
d)
Lichens convert carbohydrates into fossil fuels.
82.
What are the pioneer species for secondary succession?
a)
lichen
b)
moss
c)
grass
d)
algae
83.
The figure shows the same ecosystem in Texas at two different times. Which of the following most likely caused the change of species shown in the figure?
a)
development of a parking lot
b)
passing through a glacier
c)
preservation of habitat
d)
occurrence of a forest fire
84.
A hurricane hits coastal prairie and destroys the habitat. Years later there is an appearance of small plants with rapidly spreading roots on newly formed coastal sand dunes. The vegetation describes-
a)
a microhabitat
b)
primary succession
c)
secondary succession
d)
biodiversity
85.
How is secondary succession different from primary succession?
a)
Secondary succession occurs after a disturbance in an area that was previously uninhabited.
b)
Secondary succession occurs after a disturbance in an area in which the soil has remained intact.
86.
Which type of succession does this picture show?
a)
primary succession
b)
secondary succession
87.
the process of change in the living parts of the ecosystem 
a)
ecological succession 
b)
primary succession 
c)
climax community
d)
pioneer speciles
88.

A change an ecosystem experiences over time is called

a)

symbiosis

b)

ecological succession

c)

competition

d)

cooperation

89.

Series of changes where other organisms have not previously lived

a)

primary succession

b)

secondary succession

c)

commensalism

d)

competition

90.

Different biotic and abiotic communities together in an area

a)

species

b)

ecosystem

c)

community

d)

population

91.
What is likely to begin right after the eruption?
a)
Secondary succession 
b)
Increased tree growth 
c)
Primary succession 
d)
A climax community
92.

What is the best evidence that this is NOT primary succession?

a)

Soil and plants are present at the first step.

b)

Changes occur in stages.

c)

The size and number of the plants change.

d)

Trees are present in one of the steps.

93.
Which would most likely be the first plants to grow in an abandoned farm field?
a)
Lichens
b)
Grasses
c)
Shrubs
d)
Trees
94.
Starts with BARE ROCK followed by lichen
a)
primary succession 
b)
secondary succession
c)
both types of succession
95.

Which process occurs after humans cause deforestation?

a)

eutrophication

b)

photosynthesis

c)

primary succession

d)

secondary succession

96.

What is Ecological Succession?

a)

Competition between plants in a society

b)

A natural disaster such as a flood or fire

c)

The gradual change an ecosystem experiences over time that leads to decreased biodiversity and sustainability

d)

The gradual change an ecosystem experiences over time that leads to increased biodiversity and sustainability

97.

Which type of succession takes longer?

a)

primary

b)

secondary

c)

they both take the same amount of time

98.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

99.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

100.

The largest number of individuals that an environment can support long term is...

a)

carrying capacity

b)

emigration

c)

immigration

d)

population density

101.

Something that regulates the size of a population is called...

a)

a limiting measure

b)

a limiting factor

c)

carrying capacity

d)

biodiversity

102.

What is the carrying capacity of the graph?

a)

around 500

b)

more than 800

c)

less than 300

d)

around 700

103.

When the death rate rises and the birth rate lowers...

a)

population increases

b)

population decreases

c)

population stays the same

d)

all of these

104.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

105.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
106.

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

107.
The largest number of individuals that an area can support is called its _______.
a)
limiting factor
b)
abiotic factor
c)
resource availability
d)
carrying capacity
108.

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.

109.

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

a)

stopped reproducing

b)

reached carrying capacity

c)

mutated into a different species

d)

run out of food and all died

110.

What are factors that affect carrying capacity?

a)

Biotic only

b)

Biotic and abiotic

c)

Depends on the ecosystem

d)

Abiotic only

111.

Which statement best describes the predator-prey relationship displayed on this graph?

a)

There is no relationship between the predator and prey.

b)

When the prey population increases, the predator population decreases.

c)

When the prey population increases, the predator population increases.

d)

when the predator population increases, the prey population increases.

112.

Which of the following is a biotic factor that would affect the carrying capacity of a population?

a)

Soil

b)

Predator

c)

Rainfall

d)

Sunlight

113.

What is carrying capacity?

a)

A condition that occurs when two or more organisms compete for the same resources within an ecological community

b)

A relationship in which two organisms are mutually dependent on each other for survivial

c)

All the biotic and abiotic factors and the interactions among them in a given area

d)

The maximum number of organisms an ecosystem can support

114.

What is ecosystem?

a)

A condition that occurs when two or more organisms compete for the same resources within an ecological community

b)

All the biotic and abiotic factors and the interactions among them in a given area

c)

The maximum number of organisms an ecosystem can support

d)

A relationship in which two organisms are mutually dependent on each other for survival

115.

Which statement best describes the term limiting factors?

a)

All the biotic and abiotic factors and the interactions among them in a given area

b)

A finite resource organisms in an ecosystem require

c)

The biotic and abiotic factors in an ecosystem

d)

The maximum number of organisms an ecosystem can support

116.

Which of the following demonstrates population growth when there is limited available water in an area?

a)
b)
c)
117.

When rabbits were introduced to Australia, they began to breed exponentially. However, over time their population has begun to decrease due to a limiting factor.


What is most likely the limiting factor in this situation?

a)

Abundant space to breed and live

b)

No available predator in the area

c)

Rabbits choosing not to mate to conserve space

d)

Lack of available food

118.

Habitat availability increases for a population. How would the carrying capacity of the prey change?

a)

The carrying capacity would increase as more resources become available.

b)

Carrying capacity occurs independent of factors in the environment.

c)

The carrying capacity would decrease as more resources became available.

d)

The carrying capacity is set in an environment and cannot change.

119.

When Yellowstone National Park was created in the late 1800s, wolves were on the decline. The last wolves in Yellowstone were killed in 1926, but in the 1800s, there were between 100-160 wolves in the park. In 1995, gray wolves were reintroduced to the park.


Which graph (drawn in red) below shows a prediction of how the population would change if there was less water available in the ecosystem?

a)
b)
c)
d)

There would be no change to carrying capacity.

120.

If there are not enough rabbits in a forest to feed a large population of foxes, then

a)

space becomes a limiting factor

b)

there is no problem

c)

food becomes a limiting factor

d)

water becomes a limiting factor

121.

What is a limiting factor?

a)

a resource that can limit the size of a population

b)

a resource that can increase the size of a population

c)

a living organisms in an environment

d)

a nonliving factor in an environment

122.

carrying capacity is

a)

the number of organisms in an environment

b)

factors that limit population size

c)

the smallest population an environment can support

d)

the largest population an environment can support

123.

According to the graph, what is causing the deer population to decrease

a)

They got sick

b)

The wolf population is decreasing

c)

The wolf population increased

d)

They ran out of food

124.

Predator population lags behind prey population because......

a)

Increase in predators leads to decrease in prey

b)

Increase in predators leads to increase in prey

c)

Increase in predators leads to decrease in producers

d)

Increase in producers leads to increase in prey

125.
What statement is TRUE about the graph?
a)
The prey is the green line because there needs to be more prey than predators.
b)
The prey is the red line because there needs to be more predators than prey.
c)
The green line is the producers
d)
The red line is the producers
126.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
127.

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 capacity

c)

The population will go extinct due to lack of resources

d)

The population grows then finds a new carrying capacity

128.
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
a)
Squirrel Population
b)
Sunlight
c)
Grass available

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