wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Ecology Unit Test Review

Total questions: 100

Worksheet time: 1hrs 20mins

Name
Class
Date
1.

What is the relationship between the snake and the mouse in this food web?

a)

The snake is a primary producer and the grasshopper is a tertiary consumer

b)

The snake is a predator and the mouse is its prey

c)

The mouse is a parasite and the snake is the host

d)

The snake is a tertiary consumer and the mouse is a primary consumer

2.

What is the relationship between the Polar Bear and the Orca in this food web?

a)

They are producers

b)

They are decomposers

c)

They are competitors

3.

Excess nitrogen fertilizers sometimes drain into waterways that flow into the Galveston Bay. This nitrogen may cause algae blooms, which reduce dissolved oxygen in the water. How does nitrogen negatively affect the Galveston Bay?

a)

fish births increase

b)

fish populations decrease

c)

sediment on the bottom of the bay

4.

Which of these four species of bear would be most in danger of becoming extinct if one of its food sources became unavailable?

a)

Brown Bear

b)

Black Bear

c)

Polar Bear

d)

Panda Bear

5.

Organisms that make their own food are called __________________.

a)

producers

b)

consumers

c)

decomposers

6.

Where does all the energy originate from in a food web?

a)

All energy comes from the Sun.

b)

All energy comes from the Moon.

c)

All energy comes from your Face.

d)

All energy comes from the Sun.

7.

Blue whales live in oceans. What type of factors do they rely on for their existence?

a)

Only biotic factors

b)

Only abiotic factors

c)

Both biotic and abiotic factors

d)

Neither biotic nor abiotic factors

8.

Which type of interaction exists between shrimp and blue crabs in this food web?

a)

Shrimp prey on blue crabs.

b)

Shrimp compete with blue crabs for food.

c)

Shrimp help blue crabs filter polluted water.

d)

Shrimp decompose matter for blue crabs

9.

In this food web, which organism has the greatest number of food sources?

a)

Snake

b)

Hawk

c)

Shrew

d)

Mouse

10.

Rainforest are home to a variety of plant and animal species. Most have yet to be discovered. One study in a Brazilian rainforest found 487 tree species, 320 butterfly species and over a thousand species of insects on 2.5 acres of land. With so many different species living within a particular region, this can best be described as –

a)

Biodiversity

b)

Species

c)

Niche

d)

Food chain

11.

The diagram shows the beaks of five species of birds that developed over time from one parent species. Which of the following best explains why the beak shape of each species of bird developed differently?

a)

Each beak shape helps the birds to produce different songs.

b)

Each beak shape is an adaptation to a specific source of food.

c)

Each beak shape is designed to construct a different type of nest.

d)

Each beak shape helps protect the birds from a different predator.

12.

A certain type of mite is a parasite of honeybees. Which statement best describes the relationship between the mites and the bees?

a)

The mites harm the bees by feeding on their blood.

b)

The mites get honey in return for helping the bees stay healthy.

c)

The mites help the bees find food but get nothing in return.

d)

The mites live in the hive of the bees but do not interact with the bees.

13.

Different species of carnivorous animals that share the same habitat in an ecosystem may –

a)

become decomposers

b)

compete for biotic food

c)

produce their own food

d)

mate with each other

14.

What is one way humans are trying to positively impact the ocean?

a)

Fishing

b)

Creating artificial reefs

c)

Harvesting oil and natural gas

d)

Transporting goods in ocean vessels

15.

A grassland is pictured. Grasses are considered –

a)

Autotrophic

b)

Decomposers

c)

Heterotrophic

d)

Primary consumers

16.

Energy is lost at each level of a food chain.

a)

True

b)

False

17.

Materials like carbon, water, phosphorus, and nitrogen are recycled within an ecosystem.

a)

True

b)

False

18.

A zebra is an autotroph.

a)

True

b)

False

19.

What is the correct definition for a population?

a)

A group of organisms of different species living in the same area

b)

A group of organisms of the same species living in the same area

c)

All of the abiotic and biotic factors within an ecosystem

d)

One individual organism

20.

The amount of biomass decreases as one moves up through the trophic levels.

a)

True

b)

False

21.

Which of the following factors are examples of abiotic factors? (Select all that apply)

a)

Trees

b)

Algae

c)

Sunlight

d)

Water

e)

Fish

22.

A biologist who studies how several species in an area interact is interested in the biological level of organization called ___________________.

a)

An organism

b)

A population

c)

An ecosystem

d)

A community

23.

All of the abiotic and biotic factors in an environment make up a(n) _______________________.

a)

food chain

b)

food web

c)

community

d)

ecosystem

24.

Which of the following organisms in this food web is a primary consumer?

a)

Insects

b)

Wolves

c)

Ferns

d)

Skunk

25.

Which of the following organisms in this food web is a secondary consumer?

a)

Insects

b)

Wolves

c)

Ferns

d)

Skunk

26.

Which organism in this food web has the least amount of energy available to them?

a)

Grasshopper

b)

Snake

c)

Plant

d)

Rabbit

27.

The burning of plant material returns carbon primarily to the ________________________.

a)

herbivores

b)

water

c)

vegetation

d)

atmosphere

28.

A rabbit that eats a plant is a __________________________.

a)

primary consumer

b)

producer

c)

secondary consumer

d)

carnivore

29.

Which of the following statements is true regarding the flow of energy and matter in an ecosystem?

a)

Both energy and matter are recycled and used again.

b)

Matter is recycled and used again, energy is lost.

c)

Energy is recycled and used again, matter is lost.

d)

Neither energy not matter are recycled and used again.

30.

The Yellowstone area contains organisms representing all trophic levels, including plants, algae, moss, fungi, blue jays, and grizzly bears. Which sequence best represents the transfer of energy through Yellowstone trophic levels?

a)

fungi to moss to algae to fish

b)

blue jay to moss to fungi to plant

c)

algae to fish to grizzly bear to fungi

d)

plant to blue jay to algae to grizzly bear

31.

According to the food web shown, how do you think the population size of the small fish would react to an increase in population size of Pelicans and Herons?

a)

The population size would decrease

b)

The population size would increase slightly

c)

The population size would stay the same

d)

The population size would double

32.
Which species was DIRECTLY affected by the wolves in Yellowstone?
a)
plants
b)
bears
c)
beavers
d)
elk
33.
An organism that does NOT eat other organisms to obtain energy because it can make its own energy!
a)
plant
b)
producer
c)
autotroph
d)
these are all correct
34.
A secondary consumer that eats a primary consumer is also called a(n)
a)
herbivore
b)
omnivore
c)
carnivore
d)
autotroph
35.
A group of ducks would represent which of the following?
a)
Species Individual
b)
Population
c)
Community
d)
Ecosystem
36.
As the number of predators decrease, what happens to the number of grey squirrels?
a)
Increase
b)
Decrease
c)
Stays the same
37.
Which trophic level has the LEAST amount of energy?
a)
A
b)
B
c)
C
d)
D
38.
If a disease killed off most of the frogs, which of the following would likely occur?
a)
The snake population would increase.
b)
The cricket population would increase.
c)
The hawk population would decrease.
d)
The marsh grass would decrease.
39.
What type of relationship is most likely being demonstrated in the graph?
a)
The two animals are in a parasitic relationship
b)
The pink line animal is prey to the blue line animal
c)
The pink line animal is predator to the blue line animal
d)
One animal is a producer, the other is a consumer
40.
Which organisms have the most energy in this food web?
a)
rabbits, mice, grasshoppers
b)
Coyote, owls
c)
Owls, Birds
d)
Carrots, Grasses, Grains
41.
Which of the following is NOT a limiting factor that controls the rabbit's carrying capacity?
a)
Number of foxes
b)
Amount of grass
c)
Number of rabbit births and deaths
d)
Number of crickets
42.
How would a wildfire affect an organism's population over time?
a)
decrease, then increase, then level off
b)
decrease then level off
c)
increase, decrease, then level off
d)
increase, then decrease
43.
This picture is a model of
a)
an ecosystem
b)
a population
c)
a community
d)
a biome
44.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
45.
The non-living part of an ecosystem
a)
Ocean
b)
Lava Flow
c)
Birds
d)
Abiotic
46.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
47.
A tree is a ....
a)
composer
b)
decomposer
c)
producer
48.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
49.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
50.
What is a carnivore?
a)
an animal that gets energy by eating other animals
b)
An animal that gets energy by eating only plants
c)
an animal that gets energy by eating both plants and animals
d)
an animal that makes its own energy through photosynthesis
51.
An animal that gets energy from eating both plants and animals is a 
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
52.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
53.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
54.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
55.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
56.
The image provided is an example of a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
57.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
58.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
59.
The graph below shows population data for two species.  What can be said about the relationship between species 1 and species 2?
a)
When the population of species 1 increases, the population of species 2 decreases.
b)
The population of species 1 and species 2 stay the same over the time period shown.
c)
The population of species 1 is not influenced by the population of species 2.
d)
When the population of species 1 increases, the population of species 2 increases.
60.
Overpopulation occurs when a population exceeds its carrying capacity.  White-tailed deer are considered to be an overpopulated species in the central United States.  What is one consequence of white-tailed deer exceeding their carrying capacity?
a)
People don't see deer as often in urban areas.
b)
The deer are less healthy and more prone to disease.
c)
There are more predators to eat the deer.
d)
The deer have stopped breeding.
61.

Photosynthesis will most likely appear in which of these cycles?

a)

Nitrogen

b)

Carbon

c)

Water

62.

A population is...

a)

All of the members of a species in the same area.

b)

All of the different species in the same area.

c)

All of the Biotic and Abiotic factors in an area.

63.

Natural disturbances, such as fires or hurricanes can result in (select the most accurate)

a)

commensalism

b)

parasitism

c)

competition

d)

successsion

64.

Which is most likely to be a pioneer species during primary ecological succession?

a)

deer

b)

bird

c)

tree

d)

lichen

65.

Natural disturbances, such as fires or hurricanes can result in (select the most accurate)

a)

commensalism

b)

parasitism

c)

competition

d)

successsion

66.

If the number of deaths & emmigrations of a population is greater than the number of births & immigations

a)

population size increases but then decreases

b)

the population size remains the same

c)

population size increases

d)

population size decreases

67.

Which of the following is the smallest ecological unit?

a)

an ecosystem

b)

a community

c)

a biome

d)

a population

68.

Which of the following is considered an abiotic factor?

a)

Sunlight

b)

Predators

c)

Autotrophs

d)

Decomposers

69.

Which of the following is the best definition for "ecology"?

a)

Study of the living factors in an area

b)

Study of the nonliving factors in an area

c)

Study of the living and nonliving factors in an ecosystem

d)

Study that focuses on the organisms that live on land

70.

All of the following types of organisms can perform photosynthesis except:

a)

Bacteria

b)

Fungi

c)

Algae

d)

Plants

71.

In the Light Reactions of photosynthesis, which of these are the reactants?

a)

Energy from sunlight and water

b)

Energy from sunlight and carbon dioxide

c)

ATP and NADPH

d)

Water and carbon dioxide

72.
Water moves through the environment over and over again, this is called 
a)
succession
b)
a cycle
73.
Biotic factors in an ecosystem may include
a)
plants, animals, bacteria
b)
bacteria, soil, water
74.
Organisms that can produce offspring and breed belong to the same
a)
population
b)
species
75.
In a forest ecosystem, deer eat trees that grow in the dirt. The dirt is an example of
a)
a pioneer species
b)
an abiotic factor
76.
An example of a biotic factor is
a)
a rock
b)
a tree
77.
Mosses that grow on a rock after a glacier melts are called
a)
pioneer species
b)
colonial species
78.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
79.
Which of the following organisms is a herbivore.
a)
butterfly
b)
snake
c)
fox
d)
ladybird
80.
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.
81.
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
82.
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
83.
Does this food web have arrows pointing the right way?
a)
yes
b)
no
84.
Does this food web have arrows pointing the right way?
a)
yes
b)
no
85.

Matter in a food web is...

a)

released

b)

recycled

86.

The trees in this food web would be considered a:

a)

Consumer

b)

Producer

c)

Herbivore

d)

Insectivore

87.

The hare in this food web would be considered a(n):

a)

Omnivore

b)

Producer

c)

Herbivore

d)

Insectivore

88.

The hawk in this food web would be considered a(n):

a)

Insectivore

b)

Omnivore

c)

Herbivore

d)

Carnivore

89.
A squirrel hides his acorns from the chipmunks for the winter.
a)
commensalism
b)
parasitism
c)
competition
d)
mutualism
90.
A bear eats fish out of the river
a)
mutualism
b)
parasitism
c)
predator / prey
91.

Is wind a biotic or abiotic factor?

a)

biotic

b)

abiotic

92.

Is soil a biotic or abiotic factor?

a)

biotic

b)

abiotic

93.

Is water a biotic or abiotic factor?

a)

biotic

b)

abiotic

94.

Is temperature a biotic or abiotic factor?

a)

biotic

b)

abiotic

95.

In this food web...which of these would be the LEAST impacted if mangoes went extinct?

a)

rat

b)

fruit fly

c)

thrush

d)

dragonfly

e)

frog

96.

In this food web interspecific competition occurs between

a)

dolphins and otters for pollock

b)

eel grass for bacteria and little schools of fish

c)

dolphins and seals for herring

d)

orca for dolphins and seals

97.

True or False: When there are more resources the population will decrease.

a)

True

b)

False

98.

The lion hunting and eating an antelope is an example of:

a)

symbiosis

b)

cooperation

c)

predation

99.

Which of the following is considered an abiotic factor?

a)

Sunlight

b)

Predators

c)

Autotrophs

d)

Decomposers

100.
In the ocean scene, which of the following are MOST LIKELY the top predators of the food web?
a)
the seaweed called kelp
b)
the seal and the otter
c)
the fish and snails
d)
the plankton and algae

Similar Resources on Wayground

6th Grade Review - Part 1

100 questions

6th Grade Review - Part 1

quiz

Worksheet

•

8th Grade

Hydrology Test Review

101 questions

Hydrology Test Review

quiz

Worksheet

•

6th Grade

Grade 6 Science - End of Year Cumulative

100 questions

Grade 6 Science - End of Year Cumulative

quiz

Worksheet

•

6th Grade

Unit 5 Review

100 questions

Unit 5 Review

quiz

Worksheet

•

6th Grade

jom skor A

100 questions

jom skor A

quiz

Worksheet

•

8th Grade

Chemistry Unit Review

100 questions

Chemistry Unit Review

quiz

Worksheet

•

6th - 8th Grade

Chemistry Unit Test Review

96 questions

Chemistry Unit Test Review

quiz

Worksheet

•

8th Grade

8th Grade SSA Review

100 questions

8th Grade SSA Review

quiz

Worksheet

•

8th Grade