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Unit 7 Review

Total questions: 158

Worksheet time: 2hrs 42mins

Name
Class
Date
1.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
2.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
3.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
4.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
5.
The Largest level of ecological organization is ?
a)
Biosphere
b)
Community
c)
Population
d)
Organism
6.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
7.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
8.
The image provided (the Bear) is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
9.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
10.
These types of organisms take in Sunlight, Carbon dioxide and water, to produce their own food (glucose/sugar)?
a)
Autotrophs
b)
Decomposers
c)
Consumers
d)
Carnivores
11.

Abiotic parts of an ecosystem are

a)

Living

b)

Non-living

c)

Alive

d)

Observable with human eye

12.

Biotic parts of an ecosystem are

a)

Living

b)

Non-living

c)

Green

d)

Multi-cellular

13.

Which of the following is ABIOTIC

a)

Plants

b)

Animals

c)

Sunlight

d)

Algae

14.

Which of the following is BIOTIC

a)

Car

b)

Bacteria

c)

Table

d)

Water

15.

Ecology is the study of

a)

interactions between non-living things and their relationship with the sun

b)

interactions between living things and their relationship with the environment

c)

interactions between non-living things and their relationship with the environment

d)

interactions between living things and their relationship with each other

16.

An ecosystem

a)

is a community of organisms and their environment.

b)

is made of both biotic and abiotic factors

c)

can come in many shapes and sizes

d)

All answers are true

17.

An ecosystem needs both abiotic and biotic factors to survive

a)

True

b)

False

18.

An individual plant, animal or single-celled bacteria

a)

Organism

b)

Species

c)

Population

d)

Biome

19.

Closely related organisms that can reproduce

a)

Organism

b)

Population

c)

Species

d)

Pride

20.

All the populations of different species that interact in an ecosystem

a)

Population

b)

Species

c)

Community

d)

Ecosystem

21.

The Amazon Rainforest is an example of a

a)

Biosphere

b)

Biome

c)

Population

d)

Species

22.

Which one of these is NOT one of Earth's spheres?

a)

Atmosphere

b)

Biosphere

c)

Urbansphere

d)

Geosphere

23.

Hot Soup

a)

Abiotic

b)

Biotic

24.

Dead Leaf

a)

Abiotic

b)

Biotic

25.

Electric Car

a)

Abiotic

b)

Biotic

26.

Sea Sponge

a)

Abiotic

b)

Biotic

27.

Mold on your cheese

a)

Abiotic

b)

Biotic

28.

Clouds

a)

Abiotic

b)

Biotic

29.

A Clown Fish lives in an anemone to product it from predators. The anemone is the fish's

a)

Biome

b)

Species

c)

Habitat

d)

Food

30.

Giraffes' long necks help them reach leafs at the top of trees. This is an example of a

a)

Habitat

b)

Population

c)

Niche

d)

Species

31.

Each organism has a relationship with every element of its environment.

a)

True

b)

False

32.

What is the correct order of the levels of ecological organization from smallest to largest?

a)

Biosphere, biome, population, community, organisms, ecosystems

b)

Biosphere, biome, ecosystem, community, population, organisms

c)

Organisms, ecosystems, community, biosphere, biome, population

d)

Organisms, population, community, ecosystem, biome, biosphere

33.

A single living thing is a(n) __________.

a)

Organism

b)

Population

c)

Community

d)

ecosystem

34.

A group of living things of the SAME species in the same area at the same time.

a)

Organism

b)

Population

c)

Community

d)

Ecosystem

35.

All biotic (living) things in an environment. Groups of DIFFERENT species in the same place at the same time.

a)

Organism

b)

Population

c)

Community

d)

Ecosystem

36.

Biotic (living) and abiotic (nonliving) factors in an environment.

a)

Organism

b)

Population

c)

Community

d)

Ecosystem

37.

What does an energy pyramid show?

a)

Which animal is the biggest in a food chain

b)

Which animal eats the most in a food chain

c)

The amount of energy in each trophic level

d)

The amount of food available at each trophic level

38.

What organisms occupy level A?

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

39.

What organisms occupy level B?

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

40.

What organisms occupy level C?

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

41.

What organisms occupy level D?

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

42.

For each level of the energy pyramid, how much energy gets transferred to the next level?

a)

10%

b)

25%

c)

50%

d)

100%

43.

Which of the following is NOT represented by a food web?

a)

The directional flow of energy in an ecosystem

b)

What things eat in an ecosystem

c)

The order of organisms in an ecosystem from smallest to largest

d)

Multiple food chains

44.

Which of the following would NOT be considered a producer in the food web?

a)

Grasses

b)

Birds

c)

Grains

d)

Carrots

45.

Which organisms would be considered top consumers?

a)

Rabbits and Mice

b)

Grains and Grasses

c)

Owls and Foxes

d)

Grasshoppers and Birds

46.

What is an example of an organism that would be found in Level A?

a)

Grass

b)

Bunnies

c)

Deer

d)

Wolves

47.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
48.
Which of these is an example of precipitation?
a)
snow
b)
air
c)
clouds
d)
vapor
49.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
50.
Which stage does the #2 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
51.
Which stage does the #3 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
52.
what does the #4 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
53.
After precipitation occurs, what can the water do?
a)
It will infiltrate the ground or runoff.
b)
It will freeze and melt.
c)
It will evaporate
d)
Nothing will happen to it.
54.
How nitrogen is "fixed" into useable form for plants...
a)
through action of bacteria only
b)
through lightning only
c)
through action of bacteria & lightning
d)
through photosynthesis
55.
Nitrogen-rich fertilizers and manure can cause water pollution.
a)
True
b)
False
56.
How do plants get the nitrogen they need?
a)
from the air
b)
from the soil or water in which they live
c)
from the Sun
d)
from broken-down rocks
57.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
58.
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
59.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
60.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
61.
How does carbon affect global warming?
a)
Speeds up the effects of global warming
b)
Slows down the effects of global warming
c)
Does nothing to the speed of global warming
d)
Global warming is FAKE
62.
4. Fossil fuels came from the fossilized remains of plants and animals from long ago.
a)
True
b)
False
63.
5. The Earth provides humans with an unlimited amount of fossil fuels. They are considered renewable.
a)
True
b)
False
64.
Where are denitrifying bacteria found?
a)
In the soil
b)
Root nodules
c)
In dead things
d)
In the atmosphere
65.
Which is NOT a way that nitrogen compounds are added to the soil?
a)
Decay of dead organisms
b)
Denitrification
c)
Animal waste
d)
Nitrogen-fixation
66.

Emigration is

a)

the movement out of an area

b)

the movement into an area

c)

movement in and out of an area

d)

migration

67.

What are survivorship curves?

a)

curves that describe the number of survivors over time

b)

curves that tell us what the limiting factors are

c)

curve that tells us about the carrying capacity

d)

a curve

68.

Why don't populations grow indefinitely?

a)

limiting factors

b)

only biotic factors

c)

only abiotic factors

d)

none of the above

69.

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

a)

food

b)

parasites

c)

disease

d)

pollution

70.

What is the arrow pointing at?

a)

carrying capacity

b)

biotic potential

c)

density-independent

d)

density dependent

71.

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

a)

density dependent

b)

density independent

c)

survivorship

d)

type 1 curve

72.

What is the carrying capacity mean?

a)

The number of individuals an area can carry

b)

the number of births

c)

The number of deaths an area has

d)

not sure

73.

(Im)migration is ...

a)

the movement into an area

b)

The movement out of an area

c)

The migration process

d)

exponential graph

74.

The exponential graph is a graph that shows us population size increasing quickly, which one below shows us that

a)
b)
c)
d)
75.

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

a)

Name of schools

b)

Number of dezs

c)

Jobs

d)

Numbers of births

76.

Why don't populations grow indefinitely?

a)

limiting factors

b)

only biotic factors

c)

only abiotic factors

d)

none of the above

77.

the number of people in a defined area such as a square kilometre

a)

population density

b)

birth rate

c)

death rate

d)

population

78.

Why would an area be sparsely populated?

a)

lack of natural resources

b)

land is covered with ice

c)

land cannot be developed

d)

all of the above

79.
What factor describes when populations increase because animals are moving into a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
80.
What factor describes when populations decrease because animals are moving out of a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
81.
What does the graph represent?
a)
Emigration
b)
Exponential growth
c)
Immigration
d)
Logistic Growth
82.
Which limiting factor would increase due to the number of individuals in a population?
a)
Unusual weather
b)
Natural disaster
c)
Births
d)
Disease
83.
Which limiting factor is independent of the number of individuals in a population?
a)
competition
b)
parasitism/disease
c)
stress
d)
natural disasters
84.
What is the carrying capacity of the following graph?
a)
1000
b)
8000
c)
800
d)
600
85.
Which factor is a density-dependent limiting factor on the population of a species?
a)
seasonal variation
b)
natural disasters
c)
unusual weather
d)
predation
86.
What will happen to the population when the death rate is larger than the birth rate?
a)
grow
b)
shrink
c)
stay the same
d)
None of these
87.
What will happen to the population when the birth rate is larger than the death rate?
a)
grow
b)
shrink
c)
stay the same
88.
Which will add more organisms to a population? 
a)
5 animals die
b)
0 animals are born
c)
3 animals immigrate to the population
d)
2 animals emmigrate from the population
89.

Which of the following are density dependent factors?

a)

competition for resources

b)

predation

c)

disease

d)

natural disasters

90.

Which of the following are examples of a density independent factors?

a)

forest fire

b)

seasonal cycles

c)

storms

d)

disease

91.

As a population of a species increases within a territory, which of the following most likely also increases?

a)

Immigration

b)

Food supply

c)

Carrying capacity

d)

Competition

92.

If a population grows larger than its environmental carrying capacity, then

a)

death rate may rise.

b)

death rate may fall significantly.

c)

birth rate may rise significantly.

d)

immigration rate may increase.

93.

What does the term carrying capacity describe?

a)

The maximum number of birth rates for a population.

b)

The ability of a population to accept new immigrants.

c)

The ratio of birth rates to death rates in a population.

d)

The population size that the environment can sustain.

94.
In recent years, the human population has 
a)
increased exponentially
b)
decreased exponentially
c)
decreased slowly
d)
increased slowy
95.
Natural disasters such as flooding and tornadoes are linked to ________________.
a)
primary
b)
secondary
c)
old field
d)
ecosystem
96.
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.
97.
What is formed during primary succession that doesn't need to be formed during secondary succession?
a)
pioneer species
b)
soil
c)
climax community
d)
lichens
98.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
99.
succession that occurs in an area with no soil
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
100.

Which experiences the least change over time?

a)

Pioneer Species

b)

Primary Succession

c)

Aquatic Succession

d)

Climax Community

101.

Which of the following best describes primary succession?

a)

Volcano wipes out ecosystem that gradually grows back from ash covered soil

b)

Volcano creates a new island of rock that must break down to form an ecosystem

c)

Forest fire burns down forest that must bounce back over time

d)

Tornado destroys a crop that must slowly grow back over time.

102.

If farmers use a controlled burn to prevent forest fires, what would most likely be the first plants to return?

a)

trees

b)

shrubs

c)

mosses

d)

grasses

103.

Which would most likely result in primary succession?

a)

old forest growing

b)

undisturbed prairie

c)

pollution kills mountain lake species

d)

a Newly formed volcanic island

104.

Primary succession occurs in areas with:

a)

very little soil

b)

lots of soil

c)

no soil

d)

soil that has been disturbed

105.
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
106.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
ecological succession
c)
secondary succession
d)
intermediate
107.
What is the name given to lichen or algae after a primary succession?
a)
pioneer species
b)
volunteer species
c)
founder species
d)
conqueror species
108.
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
109.
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
110.
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 
111.
this type of succession occurs after a forest fire
a)
primary succession
b)
secondary succession
c)
both
112.
This is the process that forms a new ecosystem where no organisms lived before.
a)
resource
b)
invasive (non- native) species
c)
primary succession
d)
competition
113.
This is an example of...
a)
Climax communities
b)
Secondary succession
c)
Lichen
d)
Pioneer species
114.

What is an example of a disturbance that could bring about secondary succession?

a)

Humans cut down many trees in a small region

b)

A volcanic eruption covers a village in lava.

115.

What type of disturbance can be beneficial to ecosystems and communities?

a)

Volcanic Eruption

b)

Fire

c)

Invasive Species

d)

Flood

116.

Why don't populations grow indefinitely?

a)

limiting factors

b)

only biotic factors

c)

only abiotic factors

d)

none of the above

117.

What is the arrow pointing at?

a)

carrying capacity

b)

biotic potential

c)

density-independent

d)

density dependent

118.

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

a)

density dependent

b)

density independent

c)

survivorship

d)

type 1 curve

119.

What is the carrying capacity mean?

a)

The number of individuals an area can carry

b)

the number of births

c)

The number of deaths an area has

d)

not sure

120.

The exponential graph is a graph that shows us population size increasing quickly, which one below shows us that

a)
b)
c)
d)
121.

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

a)

Name of schools

b)

Number of dezs

c)

Jobs

d)

Numbers of births

122.

Takes place when individuals move into a population’s range.

a)

Immigration

b)

Emigration

123.

When individuals leave a particular area.

a)

Emigration

b)

Immigration

124.

When a population continues to grow at a fast rate.

a)

Exponential Growth

b)

Logistic Growth

c)

Carrying Capacity

d)

Infinity Growth

125.

This type of growth happens when an organism reaches its carrying capacity.

a)

Exponential growth

b)

Logistic growth

c)

infinity growth

d)

none of the above

126.

Factors that do NOT depend on the number of individuals living near each other.

a)

Density Independent Limiting Factors

b)

Density Dependent Limiting Factors

c)

Biotic Potential

d)

Environmental Resitance

127.

Which of the following would not be an example of a density dependent limiting factor?

a)

fire

b)

disease

c)

lack of food

d)

space

128.

Which of the following would not be an example of a density independent factor?

a)

predation

b)

tornado

c)

hurricane

d)

fire

129.

What does the yellow line represent?

a)

exponential growth

b)

logistic growth

c)

carrying capacity

d)

none of the above

130.

This graph has an S shape. What type of growth does this represent?

a)

Exponential

b)

Logistic

131.

This graph is a J shape. What type of growth does this represent?

a)

Exponential

b)

Logistic

132.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 
a)
parasitism
b)
commensalism
c)
mutualism
133.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 
a)
parasitism
b)
commensalism
c)
mutualism
134.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism
135.
a relationship that occurs when two or more organims of the same species need the same resource at the same time
a)
competition
b)
symbiosis
c)
predation
136.
In a parasitic relationship, one organism is ___________ and one organism is benefiting. 
a)
helped
b)
harmed
c)
not effected
d)
happy
137.
In a mutual relationship, both organisms are ________________. 
a)
hurt
b)
not effected
c)
harmed
d)
benefiting 
138.
Commensalism is where one organism is benefiting and the other organism is _____________________. 
a)
not effected
b)
helped
c)
harmed
d)
hurt
139.
A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
140.

A symbiotic relationship in which both species benefit:

a)

commensalism

b)

mutualism

c)

predation

d)

parasitism

141.

A habitat is ___________________.

a)

the place or kind of place in which an animal or plant naturally lives.

b)

is how plants produce their own food.

c)

is an animal that only eats meat.

d)

the place where only one animal lives.

142.

The ecological role an organism performs in their specific environment is considered the organism's...

a)

Habitat

b)

Population

c)

Biome

d)

Niche

143.

A relationship in which two different organisms live in close association with each other

a)

interspecific competition

b)

Mutualism

c)

Symbiosis

d)

Commensalism

144.
What effect does biodiversity have on a community?
a)
It makes destruction by insects impossible. 
b)
It makes primary succession more likely.   
c)
 It enables species to survive in a desert.
d)
It enables the community to withstand changes.
145.
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.
146.

The study of the interactions of living organisms with one another and with their environment

a)

Taxonomy

b)

Genetics

c)

Ecology

d)

Botany

147.

A community of organisms and their abiotic, or nonliving, environment

a)

Ecosystem

b)

Habitat

c)

Community

d)

Biosphere

148.

A group of organisms of the same species that live in a specific geographical are

a)

Ecosystem

b)

Habitat

c)

Community

d)

Population

149.

All of the populations of species that live in the same habitat and interact with each other.

a)

Ecosystem

b)

Habitat

c)

Community

d)

Population

150.

The part of Earth where life exists; includes all of the living organisms on Earth

a)

Ecosystem

b)

Biosphere

c)

Community

d)

Population

151.

A relationship between two species in which both species benefit.

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Symbiosis

152.

A relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Symbiosis

153.

A relationship between two organisms in which one organism benefits and the other is unaffected.

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Symbiosis

154.

A relationship in which two different organisms live in close association with each other

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Symbiosis

155.

A large region characterized by a specific type of climate and certain types of plant and animal communities

a)

Biome

b)

Biosphere

c)

Community

d)

Population

156.

An interaction between organisms or species in which both the organisms or species are harmed competing over the same resources.

a)

Mutualism

b)

Parasitism

c)

Competition

d)

Symbiosis

157.

An organism that kills and eats all or part of another organism

a)

Prey

b)

Predator

c)

Autotroph

d)

Heterotrophs

158.

An organism that is killed and eaten by another organism.

a)

Prey

b)

Predator

c)

Autotroph

d)

Heterotrophs

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