Ecology Test Prep
Part 1
Which level of organization is
represented by the entire picture?
A. Species
B. Community
C. Population
D. Ecosystem
Which level of organization is
represented by the entire picture?
A. Species
B. Community
C. Population
D. Ecosystem
In some parts of the world, rainforests
are being cut down to make land
available for homes, businesses, and
farms. How does the loss of these
trees affect the carbon cycle?
A. It causes oxygen to be added to the atmosphere.
B. It decreases the amount of carbon removed from
the atmosphere.
C. It increases the amount of carbon removed from
the atmosphere.
D. It decreases the amount of fossil fuels produced.
In some parts of the world, rainforests
are being cut down to make land
available for homes, businesses, and
farms. How does the loss of these
trees affect the carbon cycle?
A. It causes oxygen to be added to the atmosphere.
B. It decreases the amount of carbon removed from
the atmosphere.
C. It increases the amount of carbon removed from
the atmosphere.
D. It decreases the amount of fossil fuels produced.
In the diagram below, the trees
contains a total of 125,000 kcal of
energy. How much energy is available
to the Lions?
A. 125 kcal
B. 1,250 kcal
C. 12,500 kcal
D. 125,000 kcal
In the diagram below, the trees
contains a total of 125,000 kcal of
energy. How much energy is available
to the Lions?
A. 125 kcal
B. 1,250 kcal
C. 12,500 kcal
D. 125,000 kcal
The biome characterized by moderate
temperatures with lots of precipitation
and tall trees with needlelike leaves is a
A. Desert
B. Grassland
C. Tropical rainforest
D. Temperate rainforest
The biome characterized by moderate
temperatures with lots of precipitation
and tall trees with needlelike leaves is a
A. Desert
B. Grassland
C. Tropical rainforest
D. Temperate rainforest
Which of the following is a biotic
factor in an ecosystem?
A. Sunlight
B. Soil
C. Water
D. Bacteria
Which of the following is a biotic
factor in an ecosystem?
A. Sunlight
B. Soil
C. Water
D. Bacteria
The diagram below shows the tropic
levels of a simple food web. Which
trophic level has the least amount of
energy?
A. Producers
B. Secondary consumers
C. Tertiary consumers
D. The energy level stays
the same.
The diagram below shows the tropic
levels of a simple food web. Which
trophic level has the least amount of
energy?
A. Producers
B. Secondary consumers
C. Tertiary consumers
D. The energy level stays
the same.
The area that is located in the arctic
region is BEST described as belonging to
which biome?
A. Desert
B. Grassland
C. Temperate rain forest
D. Tundra
The area that is located in the arctic
region is BEST described as belonging to
which biome?
A. Desert
B. Grassland
C. Temperate rain forest
D. Tundra
Which of the following is an abiotic
factor in an ecosystem?
A. Predators
B. Earthquakes
C. Competition
D. Disease
Which of the following is an abiotic
factor in an ecosystem?
A. Predators
B. Earthquakes
C. Competition
D. Disease
Which series could be part of a
forest food chain?
A. Squirrel
Acorn Snake
Fox
B. Acorn
Squirrel Snake
Fox
C. Acorn
Fox
Snake
Squirrel
D. Fox
Snake
Squirrel Acorn
Which series could be part of a
forest food chain?
A. Squirrel
Acorn Snake
Fox
B. Acorn
Squirrel Snake
Fox
C. Acorn
Fox
Snake
Squirrel
D. Fox
Snake
Squirrel Acorn
Although nitrogen gas is abundant in the
atmosphere, plants cannot use it in this
form. What organism is responsible for
converting nitrogen to nitrates, which
the plants can use?
A. Bacteria
B. Insects
C. Fungi
D. Viruses
Although nitrogen gas is abundant in the
atmosphere, plants cannot use it in this
form. What organism is responsible for
converting nitrogen to nitrates, which
the plants can use?
A. Bacteria
B. Insects
C. Fungi
D. Viruses
In the drawing of the carbon cycle, what
component of the cycle is labeled 1 in
the drawing?
A. Fossil fuels
B. Combustion
C. Photosynthesis
D. Cellular
respiration
4
2
1
3
In the drawing of the carbon cycle, what
component of the cycle is labeled 1 in
the drawing?
A. Fossil fuels
B. Combustion
C. Photosynthesis
D. Cellular
respiration
4
2
1
3
Which of the following is an abiotic
factor that affects plant growth?
A. Taller plants
B. Bees
C. Worms
D. Temperature range
Which of the following is an abiotic
factor that affects plant growth?
A. Taller plants
B. Bees
C. Worms
D. Temperature range
Which element moves through all
parts of this cycle?
Deer
A. Phosphorus
B. Carbon
C. Oxygen
Plant protein
Waste
Decomposed matter
D. Nitrogen
Ammonia
Which element moves through all
parts of this cycle?
Deer
A. Phosphorus
B. Carbon
C. Oxygen
Plant protein
Waste
Decomposed matter
D. Nitrogen
Ammonia
The area that is located along the
equator is BEST described as belonging
to which biome?
A. Desert
B. Grassland
C. Tropical rainforest
D. Temperate rainforest
The area that is located along the
equator is BEST described as belonging
to which biome?
A. Desert
B. Grassland
C. Tropical rainforest
D. Temperate rainforest
All the communities of organisms that
inhabit an area as well as the nonliving
things with which they interact form
A. A population
B. A biome
C. An ecosystem
D. A biosphere
All the communities of organisms that
inhabit an area as well as the nonliving
things with which they interact form
A. A population
B. A biome
C. An ecosystem
D. A biosphere
Which of the following biotic factors
affect the population of trout in a
stream?
A. Sunlight
B. Water temperature
C. Water level
D. Predators
Which of the following biotic factors
affect the population of trout in a
stream?
A. Sunlight
B. Water temperature
C. Water level
D. Predators
Which of these BEST explains how the
emission of pollutants such as carbon
dioxide, sulfur dioxide, and nitrogen oxide
from a factory into the air may harm
organisms that live on land or in water?
A. The pollutants may react with water vapor to form acid
precipitation, which harms land plants and aquatic
organisms.
B. The release of carbon dioxide into the sir causes an increase
in carbon dioxide levels, making photosynthesis difficult.
C. Nitrogen oxide released into the air joins with water vapor
to form nitrogen-rich rain (fertilizer) that stimulates plant
and algal growth.
D. Sulfur dioxide increases the growth of water plants,
crowding out fish.
Which of these BEST explains how the
emission of pollutants such as carbon
dioxide, sulfur dioxide, and nitrogen oxide
from a factory into the air may harm
organisms that live on land or in water?
A. The pollutants may react with water vapor to form acid
precipitation, which harms land plants and aquatic
organisms.
B. The release of carbon dioxide into the sir causes an increase
in carbon dioxide levels, making photosynthesis difficult.
C. Nitrogen oxide released into the air joins with water vapor
to form nitrogen-rich rain (fertilizer) that stimulates plant
and algal growth.
D. Sulfur dioxide increases the growth of water plants,
crowding out fish.
Which sequence correctly lists the levels of
organization in the biosphere from least to
complex?
A. Community - organism - ecosystem - biome
– population
B. Population – ecosystem – biome – organism
– community
C. Organism – population – community –
ecosystem – biome
D. Biome – ecosystem – community –
population - organism
Which sequence correctly lists the levels of
organization in the biosphere from least to
complex?
A. Community - organism - ecosystem - biome
– population
B. Population – ecosystem – biome – organism
– community
C. Organism – population – community –
ecosystem – biome
D. Biome – ecosystem – community –
population - organism
Which of the following processes will
decrease carbon dioxide concentrations in
the atmosphere?
A. Decomposition
B. Respiration
C. Photosynthesis
D. combustion
Which of the following processes will
decrease carbon dioxide concentrations in
the atmosphere?
A. Decomposition
B. Respiration
C. Photosynthesis
D. combustion
What is missing in the ecological organization
of living things sequence?
Organism
Population
A. Biome
B. Biosphere
C. Community
D. Organ system
Ecosystem
What is missing in the ecological organization
of living things sequence?
Organism
Population
A. Biome
B. Biosphere
C. Community
D. Organ system
Ecosystem
The table lists four types of organisms in an
ecosystem. Which of the following shows a
correct food chain connecting organisms in
this ecosystem?
Trophic levels for ecosystem
Producers
Primary Consumers
Secondary Consumers
Decomposers
Grass
Oak tree
Acorns
Daisy
Bee
Caterpillar
Squirrel
Mouse
Bird
Snake
Fox
Frog
Bacteria
Fungi
A.Bee -> Frog -> Snake -> Bacteria
B.Acorns -> Squirrel ->Snake -> Bacteria
C.Grass -> Snake -> Mouse -> Fungi
D.Bacteria -> Fox -> Squirrel -> Acorn
The table lists four types of organisms in an
ecosystem. Which of the following shows a
correct food chain connecting organisms in
this ecosystem?
Trophic levels for ecosystem
Producers
Primary Consumers
Secondary Consumers
Decomposers
Grass
Oak tree
Acorns
Daisy
Bee
Caterpillar
Squirrel
Mouse
Bird
Snake
Fox
Frog
Bacteria
Fungi
A.Bee -> Frog -> Snake -> Bacteria
B.Acorns -> Squirrel ->Snake -> Bacteria
C.Grass -> Snake -> Mouse -> Fungi
D.Bacteria -> Fox -> Squirrel -> Acorn
Which of the following groups is most
important for bringing energy into an
ecosystem?
A.
B.
C.
D.
Consumers
Producers
Decomposers
Generalists
Which of the following groups is most
important for bringing energy into an
ecosystem?
A.
B.
C.
D.
Consumers
Producers
Decomposers
Generalists
In the carbon cycle, through what process
does carbon move from an abiotic resource
into organic matter?
A.
B.
C.
D.
Immigration
Combustion
Respiration
Photosynthesis
In the carbon cycle, through what process
does carbon move from an abiotic resource
into organic matter?
A.
B.
C.
D.
Immigration
Combustion
Respiration
Photosynthesis
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