wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

APES Unit 1 Review

Total questions: 167

Worksheet time: 6hrs 28mins

Name
Class
Date
1.
Why are food webs important for understanding ecosystem interactions?
a)
They simplify the relationships between organisms.
b)
They show the complexity and interdependence of species.
c)
They only focus on plant species.
d)
They eliminate the need to study individual species.
2.
How can changes to one organism in a food web affect others?
a)
They only affect organisms at the same trophic level.
b)
They can lead to a chain reaction affecting multiple species.
c)
They only impact herbivores.
d)
They have no impact on other organisms.
3.
What is the role of herbivores in a food web?
a)
They are the top predators.
b)
They only compete with other herbivores for food.
c)
They have no significant role in energy transfer.
d)
They consume plants and transfer energy to higher trophic levels.
4.
What do the arrows in a food web represent?
a)
The number of organisms in the ecosystem.
b)
The types of organisms present in the ecosystem.
c)
The direction of energy flow between organisms.
d)
The size of each organism in the food web.
5.
Which of the following best describes a food web?
a)
A diagram showing only herbivores and their food sources.
b)
A single pathway of energy flow between organisms.
c)
A complex network of interconnected food chains.
d)
A representation of energy flow that excludes predators.
6.
What is the primary difference between a food chain and a food web?
a)
Food webs do not show energy flow.
b)
A food web consists of multiple food chains.
c)
A food chain is more complex than a food web.
d)
Food chains only include herbivores.
7.
Which of the following statements about food chains is true?
a)
A food chain is a simple pathway of energy flow.
b)
A food chain consists of multiple interconnected food webs.
c)
Food chains do not include herbivores.
d)
Food chains are only relevant in aquatic ecosystems.
8.
Which of the following best illustrates the concept of trophic levels?
a)
All organisms in a food web are at the same level.
b)
Trophic levels are irrelevant in food webs.
c)
Organisms can occupy different trophic levels depending on their role.
d)
Only carnivores occupy the highest trophic level.
9.
What happens to the prey population if a predator's population increases?
a)
The prey population remains stable.
b)
The prey population will likely decline.
c)
The prey population will increase.
d)
The predator will become extinct.
10.
Which biome is characterized by low temperatures and low amounts of rainfall?
a)
Tundra
b)
Desert
c)
Temperate Deciduous Forest
d)
Tropical Rainforest
11.
Which biome is characterized by low temperatures and low amounts of rainfall?
a)
Tundra
b)
Desert
c)
Temperate Deciduous Forest
d)
Tropical Rainforest
12.
The most important abiotic factors when studying biomes are...
a)
Food and Water
b)
Rain and Sunlight
c)
Temperature and Oxygen
d)
Precipitation and Temperature 
13.

Which biome covers most of the land mass near Earth's equator?

a)

Desert

b)

Grassland

c)

Tropical rainforest

d)

Temperate forest

14.

The rain forest soil is

a)

poor and rocky

b)

frozen soil

c)

thick and nutrient rich

d)

thin and nutrient poor

15.
Which biome, because of its climate, has the largest number of species of plants and animals?
a)
Tundra
b)
Rainforest
c)
Desert
d)
Coniferous forest
16.

__________ primary productivity = the organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).

a)

Gross

b)

Total

c)

Net

d)

Secondary

17.

__________ primary productivity is the total amount of energy that producers convert to chemical energy in organic molecules per unit of time.

a)

Net

b)

Total

c)

Gross

d)

Secondary

18.

The total quantity of all living matter in an area is called:

a)

Troposphere

b)

Net Primary Productivity

c)

Biomass

d)

Ecosystem

19.

Ecological efficiency from one trophic level to the next is generally:

a)

1%

b)

10%

c)

75%

d)

90%

20.

Permafrost is an important factor in which biome?

a)

Boreal Forest

b)

Tundra

c)

Coral Reefs

d)

temperate rain forest

21.

Which biome is characterized by shallow, nutrient-rich waters and mangrove forests?

a)

Tropical Rainforests

b)

Tundra

c)

Coral Reefs

d)

Estuary

22.

Which biome has the highest soil nutrient levels?

a)

Temperate Grassland

b)

Boreal Forest

c)

Tropical Rainforest

d)

Temperate Deciduous Forest

23.

An observer notes that the various birds in her yard feed on are using different parts of the tree for nesting sites and food. This is an example of _______________

a)

division of labor

b)

resource conservation

c)

resource partitioning

d)

mutualism

24.

An ecosystem contains

a)

only one species

b)

multiple species

c)

living and non-living components

d)

all the similar biomes across the world

25.

A population is best described as

a)

only one species

b)

multiple species

c)

living and non-living components

d)

all the similar biomes across the world

26.
What do you call ALL the living things in the same environment?
a)
population
b)
community
c)
ecosystem
d)
biome
27.

As simple diagram showing the transfer of energy from a producer to a primary consumer and on to a secondary consumer.

a)

foodweb

b)

consumer

c)

food chain

d)

omnivore

28.
Organisms that relies on other organisms for food; consumer
a)
herbivore
b)
decomposer
c)
heterotroph
d)
species
29.
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. 
30.
All the organisms on earth get their energy directly or indirectly from?
a)
Oxygen
b)
Water 
c)
Nitrogen
d)
The Sun
31.

Which pair of biogeochemical cycles are most associated with inorganic fertilizer and sewage waste?

a)

Carbon and Nitrogen cycles

b)

Carbon and Sulfur cycles

c)

Phosphorus and Nitrogen cycles

d)

Sulfur and Nitrogen cycles

e)

Sulfur and Water cycles

32.
A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?
a)
volatilization
b)
nitrogen fixation
c)
runoff
d)
ammonification
33.
When nitrogen gas is turned in to a form that plants and animals can use is called 
a)
Combustion
b)
Photosynthesis
c)
Decomposition
d)
Nitrogen Fixation
34.
What happens when organisms die and decay? 
a)
Their nitrogen moves to the air as nitrogen gas
b)
Their nitrogen returns to the soil as ammonium
c)
Their nitrogen becomes tapped in clay and is unusable
d)
They stay on earth forever
35.
Carbon dioxide is added to the atmosphere by
a)
Burning fossil fuels 
b)
Cellular respiration
c)
Decomposing organic matter
d)
All answers are correct
36.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
37.

Which is NOT a process of the water cycle?

a)
precipitation
b)
freezing
c)
transpiration
d)
evaporation
38.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
39.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
40.
Which nutrient is not cycled through the atmosphere?
a)
carbon
b)
nitrogen
c)
phosphorous
d)
water
41.

What is the largest reservoir for water?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

glaciers

42.

Where is the largest reservoir for the phosphorus cycle?

a)

rocks and minerals

b)

the ocean

c)

the atmopshere

d)

fossil fuels

43.

What is the largest reservoir for nitrogen?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

bacteria

44.

Decomposition is part of all cycles except _______

a)

the carbon cycle

b)

the nitrogen cycle

c)

the water cycle

d)

the phosphorus cycle

45.
How do animals get nitrogen?
a)
the atmosphere 
b)
eating other organisms
c)
rainwater
d)
lightning 
46.

The only organisms that can fix atmospheric nitrogen into chemical compounds are what?

a)

virus

b)

bacteria and lightening

c)

carbon

d)

none of these

47.
The conversion of nitrate to nitrogen gas is called what?
a)
nitrification
b)
renitrification
c)
denitrification
d)
unnitrification
48.
Which of the following is NOT a stage of the nitrogen cycle?
a)
organisms breathe in nitrogen gas
b)
organisms release nitrogen compounds via waste or decomposition
c)
bacteria convert unusable nitrogen to usable nitrogen
d)
plants absorb nitrogen compounds from the soil
49.

The amount of primary productivity generated by all producers in a given ecosystem is called __________________________________

a)

Gross primary production

b)

Net primary production

c)

Total cell respiration

d)

Trophic levels

50.
.What is the effect of deforestation on the carbon cycle? 
a)
 Increase in the amount of CO2 in the atmosphere  
b)
Decrease in the amount of CO2 in the atmosphere 
c)
Increase in the amount of photosynthesis 
d)
Deforestation has no impact on the carbon cycle 
51.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
52.
Why is the ocean important to the carbon cycle?
a)
It keeps sediment containing carbon underwater for millions of years
b)
The ocean gives out more carbon then it takes in (increases global warming)
c)
The ocean isn't important to the carbon cycle.
53.
What is happening at 1?
a)
respiration: releasing CO2
b)
decomposing CO2 in the soil
c)
photosynthesis: absorbing CO2
d)
turning CO2 from the atmosphere into organic molecules
54.

What is the very next thing that happens after fertilisers enter a river in eutrophication?

a)

Fish die due to a lack of oxygen

b)

Plants below the surface die due to a lack of sunlight

c)

The number of aerobic bacteria increases

d)

Fast growth of plants

55.

In eutrophication, what directly causes the death of fish?

a)

The plants use up oxygen in respiration

b)

The fish are poisoned by high CO2 levels

c)

Bacteria use up oxygen in respiration

d)

The fish use up oxygen in respiration

56.

In eutrophication, what does 'algal bloom' refer to?

a)

The rapid increase in the number of bacteria

b)

The rapid increase in the number of plants

c)

The rapid decrease in the number of fish

d)

The rapid increase in the amount of nitrates in the river

57.

Eutrophication is defined as a change that occurs to an aquatic ecosystem. This change is mainly due to what?

a)

Newly introduced fish

b)

Depletion of the ozone layer

c)

Increased nutrient concentration

d)

Increase in atmospheric carbon dioxide.

58.

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.


The treatments planted with only wheat are the

a)

sample size.

b)

control.

c)

environmental variable.

d)

null hypothesis.

e)

replication.

59.

The concentration of carbon dioxide in the atmosphere

a)

is increasing in part due to fossil fuel use.

b)

has not significantly changed in the past 200 years.

c)

is increasing in part due to deforestation.

d)

has been decreasing since the 1800’s.

e)

can not be reliably measured

60.

The environment refers to

a)

all conditions surrounding us on Earth.

b)

species interactions that affect human life.

c)

conditions that cause negative effects on our health.

d)

interactions that harm the atmosphere.

e)

the sum of all the conditions surrounding us that influence life.

61.

The study of environmental science primarily considers

a)

interactions among human systems and those found in Earth

b)

the effect of human systems

c)

abiotic factors that influence the state of our environment

d)

factors that affect global climate change

62.

An ecosystem is a location on Earth that includes

a)

only biotic components

b)

only abiotic components

c)

interacting biotic and abiotic components

d)

positive and negative feedback loops

63.

Living in a sustainable way refers to

a)

recycling all paper, plastic, and metals

b)

using resources in a way that does not deprive future generations

c)

using Earth's resources efficiently

d)

eating locally whenever possible

64.

Which of the following is a qualitative observation?

a)

15 inches

b)

a liquid

c)

a green solution

d)

6 feet 1 inches

65.

Place the ecology levels of organization in proper order (smallest to largest)

a)

organism > population > community > ecosystem > biosphere

b)

community > organism > ecosystem > biosphere > population

c)

organism > community > biosphere > population > ecosystem

d)

population > biosphere > ecosystem > community > organism

66.

A tapeworm lives in the small intestines where it feeds and grows, robbing the human of essential nutrients. This is a _____ type of relationship.

a)

Commensalism

b)

Parasitism

c)

Symbiotic

d)

Mutualism

67.

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

68.

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

69.

Which is a biotic factor?

a)

producers

b)

pH

c)

energy

d)

humidity

70.

What law best relates to energy loss within an ecosystem?

a)

First law of thermodynamics

b)

Second law of thermodynamics

c)

Third law of thermodynamics

d)

Law of conservation of matter

71.

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

72.

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

73.

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

74.

What factors are used to classify a biome?

a)

average temperature

b)

average precipitation

c)

distinctive plants adapted to area

d)

all of these are correct

75.

Which biome is characterized by the presence of permafrost?

a)

temperate seasonal forest

b)

woodland/shrubland

c)

tundra

d)

boreal forest

76.

Terrestrial biomes are defined by ____ and ____ variables.

a)

temperature; precipitation

b)

temperature; animals

c)

precipitation; plants

d)

animals; plants

77.

What is a herbivore?

a)

receives energy from the sun

b)

only eats meat

c)

only eats plants

d)

eats both plants and meat

78.

A keystone species is best defined as

a)

an organism that eats all others

b)

an organism that runs the fastest

c)

an organism that keeps the food web stable

d)

an organism that has the most advantages

79.

Which of the following are examples of wetlands?

a)

swamps

b)

marshes

c)

bogs

d)

all of these are correct

80.

Which biome has warm temperatures, high precipitation, and little seasonal variation due to its location near the equator?

a)

Boreal forest

b)

Tropical rainforest

c)

Woodland/shrubland

d)

Subtropical desert

81.

The direction of an arrow in a food chain represents

a)

the flow of energy from organism B to A

b)

the movement of organisms

c)

the directionality of the sun

d)

the flow of energy from organism A to B

82.

What is an omnivore?

a)

receives energy from the sun

b)

only eats meat

c)

only eats plants

d)

eats both plants and meat

83.

Which of the following biogeochemical cycles does not have an atmospheric phase?

a)

Hydrolic Cycle

b)

Nitrogen Cycle

c)

Sulfur Cycle

d)

Carbon Cycle

e)

Phosphorous Cycle

84.

An ecosystem consists of

a)

A physical environment within which a biological community lives

b)

The species with which a biological community interacts

c)

A biological community and its physical environment

d)

the primary producers within a biological community

85.

Producers rely on _____ to release chemical energy and consumers rely on ____ to release chemical energy.

a)

Cellular Respiration; photosynthesis

b)

Cellular Respiration; cellular respiration

c)

photosynthesis; cellular respiration

d)

photosynthesis; photosynthesis

86.

In the Nitrogen cycle, what is one Natural way that Nitrogen gets into our soil?

a)

Fertilizers

b)

Human Waste through septic tanks

c)

Decomposing animals

d)

Industrial waste

87.

In the _____, there is no wet/dry season. But we do see more lower plants with a thicker epidermis..

a)

Tundra

b)

Boreal

c)

Savanna

d)

Desert

e)

Taiga

88.

There are less nutrient rich soils in the Rain Forest due to the dense tree canopy and water runoff.

a)

True

b)

False

89.

Which biome has the lowest average Temperature, and the lowest Precipitation?

a)

Tundra

b)

Savanna

c)

Rainforest

d)

Taiga

90.

Diurnal and Nocturnal creatures share their resources through the use of which of the following processes?

a)

Competition

b)

Resource Partitioning

c)

Different trophic levels

d)

Coevolution

91.

Diurnal and Nocturnal creatures share their resources through the use of which of the following processes?

a)

Competition

b)

Resource Partitioning

c)

Different trophic levels

d)

Coevolution

92.

In a food pyramid, which organism can be found on the bottom?

a)

Primary Consumers

b)

producers

c)

Secondary Consumers

d)

Herbivores

93.

One species benefits and the other is not affected is an example of which symbiotic relationship?

a)

Parasitism

b)

Commensalism

c)

Mutualism

d)

Predation

94.

Human activities such as the ____ release large amounts of Carbon into our atmosphere.

a)

Burning of fossil fuels

b)

burning of wood

c)

use of synthetic fertilizers

d)

use of detergents

95.

The concentration of carbon dioxide in the atmosphere

a)

is increasing in part due to fossil fuel use.

b)

has not significantly changed in the past 200 years.

c)

is increasing in part due to deforestation.

d)

has been decreasing since the 1800’s.

e)

can not be reliably measured

96.

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

97.

Most energy on Earth comes from

a)

volcanoes

b)

the sun

c)

trees

d)

water

e)

fire

98.

Exemplified by bees consuming nectar and carrying pollen from one flower to another

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Predation

e)

Competition

99.

Which environment is characterized by the highest diversity of tree species?

a)

A

b)

B

c)

C

d)

D

e)

E

100.

Which environment is has permafrost as an underlying subsoil?

a)

A

b)

B

c)

C

d)

D

e)

E

101.

This biome is characterized by long dry seasons and is dominated by grasses, shrubs, and grazing animals.

a)

Savanna

b)

Boreal

c)

Tropical Rainforest

d)

Grassland

102.

The location of the greatest remaining natural biodiversity

a)

A

b)

B

c)

C

d)

D

e)

E

103.

This freshwater biome is characterized by fast-flowing water that can originate from underground springs or runoff, which carries sediment and organic material.

a)

Coral Reefs

b)

Rivers

c)

Freshwater Wetlands

d)

Open ocean

104.

This biome is considered to have the lowest primary productivity per square area

a)

Open ocean

b)

Wetlands

c)

Coral Reefs

d)

Rivers

105.

The two major processes involved in the carbon cycle are

a)

weathering and erosion

b)

erosion and deposition

c)

evaporation and transpiration

d)

photosynthesis and respiration

e)

fixation and denitrification

106.

The two major processes involved in the nitrogen cycle are

a)

weathering and erosion

b)

erosion and deposition

c)

evaporation and transpiration

d)

photosynthesis and respiration

e)

fixation and denitrification

107.

Select the choice that best fits each statement.

Plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA, amino acids, and proteins.

a)

Denitrification

b)

Assimilation

c)

Ammonification

d)

Nitrogen fixation

108.

What is the main difference between phosphorus and the other major cycles?

a)

Phosphorus exists in elemental form

b)

Phosphorus does not have an atmospheric component

c)

The phosphorus cycle occurs very rapidly

d)

Phosphorus is not needed for life

109.

The process in the hydrologic cycle in which water vapor is released from leaves into the atmosphere is called

a)

Transpiration

b)

Precipitation

c)

Photosynthesis

d)

Condensation

110.

In a given ecosystem, producers convert solar energy into 15,000kcal of chemical energy stored in organic compounds. Which of the following is the most likely amount of energy available to primary consumers?

a)

1.5 Kcal

b)

150 kcal

c)

1,500 kcal

d)

13,500 kcal

111.

Which of the following best describes the net primary productivity of an ecosystem?

a)

Net primary productivity is the amount of energy captured by producers through photosynthesis over time.

b)

Net primary productivity is the amount of energy lost by producers through respiration over time.

c)

Net primary productivity is the amount of energy lost through respiration by producers subtracted from the gross primary productivity of an ecosystem.

112.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle
113.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle.
114.
Organisms require nitrogen to make which of the following?
a)
glucose and starch
b)
lipids and nucleic acids
c)
proteins and nucleic acids
d)
carbohydrates and proteins
115.
Where is carbon stored in the environment?
a)
Fossil fuels
b)
Wood of trees
c)
Calcium carbonate (shells and bones)
d)
All of the above
116.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
117.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
118.

An organisms special role or position, such as where it lives, how it eats or behaves, and how it interacts with other organisms and the environment.

a)

ecosystem

b)

food web

c)

habitat

d)

niche

119.

An observer notes that the various birds in her yard feed on are using different parts of the tree for nesting sites and food. This is an example of _______________

a)

division of labor

b)

resource conservation

c)

resource partitioning

d)

mutualism

120.

Which of the following ecosystems experiences harsh conditions due to conditions from tides?

a)

Coral reef

b)

Freshwater wetlands

c)

Open ocean

d)

Intertidal zone

121.

What is the effect of deforestation on the carbon cycle?

a)

Increase in the amount of CO2 in the atmosphere

b)

Decrease in the amount of CO2 in the atmosphere

c)

Increase in the amount of photosynthesis

d)

Deforestation has no impact on the carbon cycle

122.

The largest reservoir of nitrogen is the:

a)

Oceans

b)

Rivers

c)

Rock, Lithosphere, & Land

d)

Atmosphere

123.

Nitrogen is added to the atmosphere by:

a)

Denitrification

b)

Fixation

c)

Nitrification

d)

Ammonification

124.

Nitrogen is removed from the atmosphere by:

a)

Denitrification

b)

Fixation

c)

Nitrification

d)

Ammonification

125.

Which of the following best illustrates an abiotic factor affecting a biotic component?

a)

Composting manure is added to agriculture

b)

Phosphorous content in soil affecting plant growth

c)

Plants release oxygen into the atmosphere.

d)

Plants preventing soil erosion

126.

If gross primary productivity in a wetland is 3 kg C/m2/year and respiration is 1.5 kg C/m2/year, what is the net Primary Productivity of the wetland?

a)

1.5 kg C/m2/year

b)

2 kg C/m2/year

c)

3 kg C/m2/year

d)

4.5 kg C/m2/year

127.

The gross primary productivity of an ecosystem is?

a)

the total amount of biomass.

b)

the total energy captured by photosynthesis.

c)

the energy captured after accounting for respiration

d)

the energy available to primary consumers.

128.
How to calculate Net Primary Production:
a)
(GPP)(respiration)=NPP
b)
GPP/respiration=NPP
c)
GPP+respiration=NPP
d)
GPP-respiration=NPP
129.

If gross primary productivity is 5 gC/m2yr, and the producers need 1.5 gC/m2yr for their own respiration, what is the net primary productivity?

a)

3.5 gC/m2yr

b)

6.5 gC/m2yr

c)

-3.5 gC/m2yr

d)

7.5 gC/m2yr

130.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
131.
How do animals get nitrogen?
a)
the atmosphere 
b)
eating other organisms
c)
rainwater
d)
lightning 
132.
What happens during the process of nitrogen-fixation?
a)
Nitrogen compounds turn into free nitrogen
b)
Free nitrogen turns into nitrogen compounds
133.
What role do decomposers play in the phosphorous cycle?
a)
absorb phosphorous 
b)
release phosphorous into atmosphere
c)
return phosphorous into the soil
d)
combustion
134.
In this picture, the ZEBRA is the __________________
a)
predator
b)
prey
135.

What does every food chain start with?

a)

producers

b)

sun

c)

consumer

d)

decomposers

136.
These are organisms such as mushrooms and bacteria that break down tissues of dead organisms.
a)
decomposers
b)
producers
c)
autotrophs
d)
algae
137.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
138.

What law best relates to energy loss within an ecosystem?

a)

First law of thermodynamics

b)

Second law of thermodynamics

c)

Third law of thermodynamics

d)

Law of conservation of matter

139.

Analyze and interpret the graph. What pattern do you see between the hare and lynx

a)

As the prey density increases the number of predators increase

b)

As the prey density decreases the number of predators increase

c)

As the prey density increases the number of predators decrease

d)

Both the prey density and predator density stay the same.

e)

None of the above

140.

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

141.

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

142.
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
143.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

144.
Phosphorous is needed in organisms for the production of
a)
ADP and ATP.
b)
Cellular membranes.
c)
Deoxyribonucleic and ribonucleic acids.
d)
All of the answers are correct
145.
Trophic levels are represented by 
a)
squares
b)
circles
c)
pyramids
d)
lines
146.
Eat primary consumers (can be carnivores and omnivores)
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Quaternary Consumers 
d)
Top Predators 
147.
An organism that uses an outside source of energy like the sun to create energy-rich food molecules.
a)
Consumer
b)
Producer
c)
Decomposer
d)
Parasite 
148.

Energy enters a system as sunlight and a producer is able to produce 10 kilograms of tissue. If eaten, the producer would produce about ___ kilograms of a consumer tissue that would provide about ____ kilograms of tissue for a secondary consumer

a)

100; 10

b)

10; 1

c)

100; 1

d)

1; 0.1

149.

At which trophic level are dragonflies that consume mosquitoes that feed on herbivorous mammals?

a)

Primary Producers

b)

Decomposers

c)

Primary Consumers

d)

Secondary Consumers

e)

Tertiary Consumers

150.
What's the role of consumers in a food chain?
a)
Use sunlight to make food 
b)
Eat other species and keep them from overpopulating
c)
Break down dead stuff
d)
Add nutrients to the soil
151.
Which food chain is in the correct order?
a)
cat, grass, bird, snail
b)
bird, snail, grass, cat
c)
grass, snail, bird, cat
d)
grass, cat, bird, snail
152.
In this food web, which two organisms could be harmed if the mouse population were to decrease?
a)
Deer and caterpillar
b)
Wolf and snake
c)
Oak and grass
d)
Hawk and songbird
153.
If the grasshopper were to be removed completely from the food web, what organism would be most effected?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
154.
A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?
a)
A
b)
B
c)
C
d)
D
155.
Jacob is going out to his grandparents fram.  On the farm is a stream that he likes to fish at. When he is fishing he sees many differernt speacies of fish as well as maple and oak trees and dragonflies.  What Jacob is seeing is an example of what level of organization?
a)
organism
b)
population
c)
community
d)
ecosystem
156.
Abby is walking to school with her best friend Jaylyn. They begin talking about everything they see including the ash trees, grass, weeds, ants, and people. They also notice how cold it is, how there are several large puffy clouds out, and how the sun is just starting to come up.  What level of organization are they discussing?
a)
community
b)
ecosystem
c)
biome
d)
biosphere
157.
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
a)
There would be a decrease in the small bird population.
b)
There would be a decrease in the grass/flowers population.
c)
There would be a decrease in the mice population.
d)
There would be an increase in the grass/flowers population.
158.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
159.
What might happen if you remove a primary consumer from the ecosystem?
a)
There would be more food for secondary consumers.
b)
The number of primary consumers would increase.
c)
The number of plants would increase.
d)
The number of secondary consumers would increase.
160.
If there is more food than usual in an ecosystem, then...
a)
Populations will stay the same
b)
Populations will decrease
c)
Populations will increase
161.

If there are 100 Kcal of energy available in the producers, how much energy would be available in the primary consumers?

a)

10 Kcal

b)

1 Kcal

c)

100 Kcal

d)

1000 Kcal

162.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
163.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
164.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
165.
What are the three types of water ecosystems?
a)
freshwater, saltwater, marine
b)
freshwater, marine, estuarine
c)
freshwater, saltwater, ocean water
d)
none of these are correct
166.
The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?
a)
As more birds feed higher in the tree, available energy increases.
b)
More abiotic resources are available for each bird.
c)
Predators are less likely to feed on birds in a variety of locations.
d)
There is less competition for food.
167.
For plants, ______ can include sunlight, water, and soil nutrients.
For animals, ______can include nesting space, shelter, types of food, and places to feed.
a)
niche
b)
communities
c)
resources
d)
biomes

Similar Resources on Wayground

Improper Fractions

10 questions

Improper Fractions

quiz

Worksheet

•

5th Grade

UNIT 3 - page 33 Kent Larson's TED Talk - Coopling.com.br

10 questions

UNIT 3 - page 33 Kent Larson's TED Talk - Coopling.com.br

quiz

Worksheet

•

Professional Development

Quiz før påske

10 questions

Quiz før påske

quiz

Worksheet

•

8th Grade

ar R-controlled vowels

10 questions

ar R-controlled vowels

quiz

Worksheet

•

4th Grade

Atropatena

10 questions

Atropatena

quiz

Worksheet

•

7th Grade

SISTEM PEREDARAN DARAH MANUSIA (5 ALLAMANDA)

10 questions

SISTEM PEREDARAN DARAH MANUSIA (5 ALLAMANDA)

quiz

Worksheet

•

5th Grade

HHH4: UNIT 2 - READING

10 questions

HHH4: UNIT 2 - READING

quiz

Worksheet

•

4th Grade

schooltaalwoorden

10 questions

schooltaalwoorden

quiz

Worksheet

•

2nd Grade