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Living World Test Review

Total questions: 90

Worksheet time: 2hrs 5mins

Name
Class
Date
1.
A habitat is a specific place that an animal lives.
a)
True
b)
False
2.
Which habitat is very dry, has very little plant life, and is too hot to support many animals?
a)
Stream
b)
Forest
c)
Desert
d)
Polar Region
3.
An endangered species is
a)
One whose numbers are so small that it is at risk of extinction
b)
One whose not been spotted after many years.
c)
One whose numbers are abundant.
4.
the role an organism plays in the environment. 
a)
habitat 
b)
niche
5.
Which of the following is a physical adaptation for the underlined animal?
a)
A snake unhinges its jaw to eat a rabbit it just caught.
b)
A hognose snake rolls over, slows its breathing, and hangs its tongue out to pretend to be dead.
c)
A herd of buffalo encircle their young to protect them from a pack of wolves.
d)
A dung beetle rolls a piece of dung across the desert.
6.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
7.
What is the most abundant gas in the atmosphere?
a)
hydrogen
b)
oxygen
c)
helium
d)
nitrogen
8.
Where are denitrifying bacteria found?
a)
In the soil
b)
Root nodules
c)
In dead things
d)
In the atmosphere
9.
What happens during the process of nitrogen-fixation?
a)
Nitrogen compounds turn into free nitrogen
b)
Free nitrogen turns into nitrogen compounds
10.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
11.

Which cycle are fossil fuels (oil, coal, natural gas) part of?

a)

carbon

b)

water

c)

nitrogen

d)

phosphorus

12.

Which cycle DOESN'T have an atmosphere component (part)?

a)

carbon

b)

nitrogen

c)

phosphorus

d)

water

13.

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

14.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
15.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle
16.

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

a)

eutrophication

b)

Nothing

c)

Death

d)

diseases

17.
This is released by the weathering of rocks.
a)
Carbon
b)
Oxygen
c)
Phosphorus
d)
Nitrogen
18.

The step of the nitrogen cycle that is in red is called...

a)

Denitrification

b)

Nitrification

c)

Nitrogen Fixation

d)

Ammonification

19.

The step of the nitrogen cycle that is in red is called...

a)

Denitrification

b)

Nitrification

c)

Nitrogen Fixation

d)

Ammonification

20.

Nitrogen fixation...

a)

animals eat the plants and other animals that contain nitrogen and release it through their waste

b)

Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen

c)

Once in the ground, bacteria in the soil also nitrify the nitrogen

d)

plants absorb nitrogen through their roots and return it back to the atmosphere

21.

Ammonification...

a)

animals eat the plants and other animals that contain nitrogen and release it through their waste

b)

Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen

c)

Once in the ground, bacteria in the soil also nitrify the nitrogen

d)

plants absorb nitrogen through their roots and return it back to the atmosphere

22.

Denitrification...

a)

animals eat the plants and other animals that contain nitrogen and release it through their waste

b)

Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen

c)

nitrogen is released back into the atmosphere from the animal’s waste or decomposers

d)

plants absorb nitrogen through their roots and return it back to the atmosphere

23.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
d)
composers
24.

What is the process in which plants capture the energy in sunlight and use it to make food?

a)

cellular respiration

b)

carbon dioxide

c)

glucose

d)

photosynthesis

25.

What is the chemical equation for photosynthesis? Choose the BEST answer

a)

C6H12O6 + O2 -> CO2 + H2O

b)

CO2 + H2O --> C6H12O6 + O2

c)

6 CO2 + 6 H2O --> C6H12O6 + 6 O2

d)

C6H12O6 + 6 O2 -> 6 CO2 + 6 H2O

26.

What are the products of photosynthesis?

a)

water and carbon dioxide

b)

oxygen and glucose

c)

oxygen and carbon dioxide

d)

oxygen and water

27.
Cellular respiration is...
a)
the process by which cells break down glucose into energy. 
b)
the process by which cells break light down into energy. 
c)
the process by which cells communicate with other cells. 
28.

Organisms that produce their own food mostly through photosynthesis (producers). Examples are plants and algae.

a)

Ominvore

b)

Detritivore

c)

Heterotroph

d)

Autotroph

29.

Organisms that get their energy and nutrition from other organisms (consumers).

a)

Heterotroph

b)

Autotroph

c)

Decomposer

d)

Detritivore

30.

Heterotrophs that get energy and nutrition from dead or decaying organisms or their waste products and recycle nutrients back to the ecosystem.

a)

Producer

b)

Trophic

c)

Decomposer

d)

Autotrooph

31.

The level in an Ecological pyramid that includes all the organisms that share the same place in a food chain.

a)

Trophic Levels

b)

Toxic Levels

c)

KeKe Levels

d)

Environmental Systems

32.

Only 10% of the energy is passed on from one trophic level to the next. 90% is lost as heat due to cellular respiration or waste.

a)

Tertiary Consumer

b)

Biotic Factor

c)

Abiotic Factor

d)

10% Rule

33.

A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.

a)

keystone

b)

invasive

c)

engineer

d)

predator

34.

Why are bees considered a keystone species?

a)

The honey they make supports the bear population

b)

They pollinate flowers that produce fruit which supports the ecosystem

c)

They sting when threatened

d)

They live in hives

35.

A life form that is very sensitive to environmental changes in its ecosystem. They can give us early-warning messages that a habitat is suffering.

a)

Indicator Species

b)

Flagship Species

c)

Predators

d)

Ecosystem Engineers

36.
What is deforestation?
a)
Clearing Earth's forests on a massive scale
b)
Eating too much vegetables
c)
Going to a forest and pulling weeds
d)
Clearing the five trees in my backyard
37.

Which of the following is NOT a threat to biodiversity?

a)

Pollution

b)

Deforestation

c)

Invasive Species

d)

Ecological Succession

38.
What does conserving resources mean?
a)
Use as much of the resources as you can
b)
Only use the resources at school
c)
Protecting the resource so it does not run out
39.

How do biodiversity and stability work together?

a)

The lower the biodiversity the greater the stability of an ecosystem.

b)

The higher the biodiversity, the less stable the ecosystem

c)

The higher the biodiversity, the greater the stability of the ecosystem.

d)

Biodiversity has nothing to do with ecosystem stability.

40.

Define genetic diversity

a)

a variety of genes and traits within a species

b)

a variety of ecosystems in a given area

c)

system made up of all the living and nonliving things in a given area

d)

a variety of species in an ecosystem

41.

The level of biodiversity that involves a variety of habitats is _____ diversity.

a)

ecosystem

b)

population

c)

genetic

d)

species

42.

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

43.

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.

44.

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

45.
How to calculate Net Primary Production:
a)
(GPP)(respiration)=NPP
b)
GPP/respiration=NPP
c)
GPP+respiration=NPP
d)
GPP-respiration=NPP
46.

The GPP of a certain producer is 5,000 gC/m2yr and the NPP is 4,000 gC/m2yr. What is the repsiratory energy needed by the autotrophs?

a)

cannot be determined from the information given

b)

1,000 gC/m2yr

c)

9,000 gC/m2yr

d)

-1,000 gC/m2yr

47.

Which community has higher species evenness?

a)

Community A

b)

Community B

48.

Species richness is

a)

a measure of how all of the individual organisms in an ecosystem are balanced between the different species.

b)

the total number of different species found in an ecosystem

49.

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

a)

True

b)

False

50.

These maintain the quality of air and soil and provide flood and disease control.

a)

Cultural services

b)

Supporting services

c)

Provisioning services

d)

Regulating services

51.

These generate money through recreation at a National Park.

a)

Cultural services

b)

Supporting services

c)

Provisioning services

d)

Regulating services

52.

Which island would be the most biodiverse?

a)

Small island far from the mainland

b)

Small island close to the mainland

c)

Large island close to the mainland

d)

Large island far from the mainland

53.

A solution to habitat fragmentation is

a)

building ecosystem ladders

b)

building more zoos

c)

building more islands

d)

building wildlife corridors

54.

Secondary succession begins

a)

on bare, exposed rock.

b)

after a disturbance like a wildfire.

55.
A relationship between two species where one benefits while the other is harmed.
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Naturalism
56.
A frog eats a fly. The frog and fly are demonstrating ________.
a)
mutualism
b)
competition
c)
predator/prey
d)
parasitism
57.
A relationship between two organisms in which one organism benefits and the other is unharmed
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
58.
No two species can occupy the same niche
a)
Competitive Exclusion Principle 
b)
Limiting Exclusion Theory
c)
Competitive Limiting Principle
d)
Limiting Competitive Theory 
59.
What type of species interaction is the following: two bears fighting over the same mate. 
a)
predation 
b)
mutualism 
c)
competition 
d)
parasitism 
60.
_______ is when 2 or more species live in close association. 
a)
predation 
b)
competition 
c)
symbiosis 
d)
food web 
61.
This species is often the first to suffer when the environmental conditions begins to decline
a)
Pioneer Species
b)
Keystone Species
c)
Indicator Species
d)
Exotic Species
62.
This outcome of competition often leads to the extinction of one of the competing species
a)
Character Displacement
b)
Competitive Exclusion
c)
Resource Partitioning 
d)
Brood Parasitism
63.

hey can live in many different places, eat a variety of foods, and tolerate a wide range of environmental conditions.

a)

generalist species

b)

specialist species

64.

Invasive species alter the ecosystem by ______ in number quickly. This leads to ______ food for the native species.

a)

increasing, less

b)

increasing, more

c)

decreasing, less

d)

decreasing, more

65.

Which of the following is an example of an invasive species?

a)

Trout

b)

Kudzu

c)

Mosquito

d)

Daisy

66.

Why do populations of invasive species grow so quickly?

a)

They are prey to many animals.

b)

They are native to the area.

c)

They help keep the ecosystems in balance.

d)

They have no predators.

67.

Pelicans are birds that live in many water environments. They can live in large lakes, in marshy wetlands, and along beaches near the ocean. The picture shows a pelican. What does the pouch on its bill most likely help the pelican do?

a)

  Catch fish

b)

  Store water

c)

Attack other animals

d)

Balance when it walks

68.

Bullfrogs are Florida’s largest frog. Frogs spend part of their life cycles in water and part on land. Which physical characteristic is most useful for a water environment?

a)

Thin skin

b)

Large eyes

c)

Webbed feet

d)

Long, strong legs

69.

In the fall, a ground squirrel will store the energy from food as a thick layer of fat. What is most likely the reason for this adaptation?

a)

It keeps the animal from being exposed to diseases in winter.

b)

  It keeps the animal from being eaten by predators that hunt during winter.

c)

  It helps the animal get exercise during winter when it is snowing.

d)

It helps the animal survive a cold winter when there is very little food.

70.

It is estimated that fewer than 100 Florida panthers are still living. Florida now has a protected habitat for the panther. How will the  protected habitat affect the panthers?

a)

The panthers will probably become extinct.

b)

Panthers will no longer be adapted to living in Florida.

c)

  The Florida panther population will decrease in the near future.

d)

The panther population may increase now that they are being conserved in a protected habitat.

71.

Which community has a greater species RICHNESS?

a)

Community A

b)

Community B

c)

They both have EQUAL species richness

d)

NEITHER

72.

Which community has a greater species EVENESS?

a)

Community A

b)

Community B

c)

They BOTH have EQUAL species eveness

d)

NEITHER

73.

Given the following image. Identify it's level of biodiversity

a)

NO Biodiversity

b)

LOW Biodiversity

c)

MEDIUM Biodiversity

d)

HIGH Biodiversity

74.

A hurricane wipes out an entire population of bees. This is an example of

a)

natural selection

b)

bottleneck

c)

founder effect

75.

Wolves only hunt for orange foxes. Orange foxes go extinct, but white foxes stay alive. This is an example of

a)

natural selection

b)

bottleneck

c)

founder effect

76.
A frog eats a fly. The frog and fly are demonstrating ________.
a)
mutualism
b)
competition
c)
predator/prey
d)
parasitism
77.
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.
78.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
79.
What is this biome?
a)
Grassland
b)
Desert
80.
What is this biome?
a)
Desert
b)
Arctic Tundra
c)
Tropical Rainforest
81.
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.
82.
Examples of how humans negatively affect local ecosystems are
a)
Building dams, deforestation (cutting down trees), adding point sources to nearby streams to allow for run-off, building roads and structures, and salting roads.
b)
Creating laws to prohibit fishing from local streams.
c)
Planting trees and other plants to attract native species.
d)
Removing non-native species from the environment.
83.
What does it mean when an animal is endangered?
a)
Something once lived but no longer exists.
b)
Animals that is at risk of extinction.
c)
Place that protects animals at risk.
84.

A species is defined as endangered when it

a)

suffers from damage to its habitat.

b)

suffers from disease or predation.

c)

when there are hazards to the continued life of the species.

d)

all of the above

85.

Which of the following leads to a decrease in biodiversity?

a)

introduction of invasive species

b)

prevention of erosion

c)

ecological land use planning

d)

pollution control

86.

Law of the 70's that protects endangered species in the U.S.

a)

Endangered Species Act

b)

CITES

c)

Lacey Act

d)

One Act Plays

87.

Fragmented habitat can be reconnected most directly by

a)

wildlife corridors

b)

captive breeding programs

c)

debt for nature swaps

d)

prescribed burns

88.

Which of the following international treaties bans the hunting, capture, and sale of threatened or endangered species in 181 countries? CITES

a)

Endangered Species Act (ESA)

b)

The National Marine Fisheries Act

c)

The Convention on International Trade in Endangered Species (CITIES)

d)

National Enviornmental Policy Act (NEPA)

e)

The Marine Mammal Protection Act

89.

Choose the option that expresses the definition the best.

"Logging, mining, building of roads, and urban development."

a)

Habitat destruction,degradation, and fragmentation.

b)

Invasive (nonnative species).

c)

Population and resource use growth.

d)

Greenhouse effect.

e)

Overexplotation.

90.

Which of the following is not linked to Endangered species?

a)

K-Strategist

b)

Specialized niche

c)

rare

d)

commercially valuable

e)

R-Strategist

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