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Unit 6 - Food Webs & Energy Pyramids

Total questions: 124

Worksheet time: 2hrs 21mins

Name
Class
Date
1.

Make their own food for energy

a)

producers

b)

herbivores

c)

omnivores

d)

carnivores

2.

Get their energy from consuming plants (primary consumers)

a)

producers

b)

herbivores

c)

omnivores

d)

carnivores

3.

Get their energy from consuming plants and other organisms (primary or secondary consumers)

a)

producers

b)

herbivores

c)

omnivores

d)

carnivores

4.

Get their energy from consuming other organisms (secondary or tertiary consumers)

a)

producers

b)

herbivores

c)

omnivores

d)

carnivores

5.

Grasses directly pass energy to...

a)

grasshopper, frog, bird

b)

mouse, rabbit, grasshopper

c)

rabbit, fox, snake

d)

frog, owl, mouse

6.

What is the frog considered in this food web?

a)

producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

7.

Which would NOT be considered an apex predator?

a)

fox

b)

owl

c)

hawk

d)

snake

8.

The frog in this food web could be considered a second-level and third-level consumer

a)

true

b)

false

9.

Which organism DOES NOT pass energy directly to the eagle?

a)

rat

b)

thrush

c)

frog

d)

dragonfly

10.

How many producers are on this food web? Primary consumers (herbivores)?

a)

2, 3

b)

4, 3

c)

3, 3

d)

4, 2

11.

A producer is something that:

a)

Eats plants

b)

Makes its own food

c)

Eats animals

d)

Eats plants and animals

12.

Producers are always at the __________ of a food chain

a)

Beginning

b)

Middle

c)

End

d)

Producers are not part of the food chain

13.

Consumers...

a)

Make their own food

b)

Go through photosynthesis

c)

Eat other organisms

d)

Breathe in carbon dioxide

14.

Which of these things is NOT a consumer

a)

Human

b)

Whale

c)

Tree

d)

Chicken

15.

What do the arrows show in this food chain:


plant → grasshopper → bird → snake → owl.

a)

The arrow points from the organism being eaten to the organism that eats it.

b)

The arrow points from the organism that eats it to the organism that is being eaten.

c)

The arrow points from biggest animal to smallest animal.

d)

The arrow points from the consumers to the producers.

16.

What is the producer in this food chain?


phytoplankton → krill → fish → shark

a)

Phytoplankton

b)

Krill

c)

Fish

d)

Shark

17.

As you move through a food chain, the amount of energy stored....

a)

Increases

b)

Decreases

c)

Stays the same

d)

It depends on the ecosystem

18.

How much energy does trophic level 2 store from trophic level 1? (and so on..)

a)

1%

b)

10%

c)

50%

d)

100%

19.

Arrows in a food web show the flow of

a)

energy

b)

protein

c)

nutrients

d)

glucose

20.

Multiple food chains that interact together is called a ....

a)

Spider Web

b)

Food Spider

c)

Food Web

d)

Web of Food

21.

What do decomposers eat?

a)

Dead things

b)

Living things

22.

An autotroph is another word for a ________, meaning it needs to ________

a)

Consumer, eat other animals

b)

Consumer, eat other plants

c)

Producer, make its own food

d)

Producer, survive without water

23.

An heterotroph is another word for a ________, meaning it needs to ________

a)

Consumer, eat other organisms

b)

Consumer, go through photosynthesis

c)

Producer, make its own food

d)

Producer, survive without water

24.

Mushroom (Fungus)

a)

Decomposer

b)

Producer

c)

Consumer

25.

Trees

a)

Decomposers

b)

Consumers

c)

Producers

26.

Falcon

a)

Decomposer

b)

Consumer

c)

Producer

27.

Cactus

a)

Abiotic

b)

Biotic

28.

What are the two REACTANTS in photosynthesis?

a)

Carbon dioxide and oxygen

b)

Water and sunlight

c)

Water and carbon dioxide

d)

Glucose and sunlight

29.

What are the PRODUCTS in photosynthesis?

a)

Sunlight and water

b)

Carbon dioxide and water

c)

Glucose and carbon dioxide

d)

Glucose and oxygen

30.

What does an ecosystem NEED to survive?

a)

Sunlight

b)

Oxygen

c)

Carbon Dioxide

d)

All of the above

31.

Example of a consumer

a)

flower

b)

tree

c)

algae

d)

hawk

32.
Example of a decomposer
a)
fungus
b)
mouse
c)
plants
d)
frogs
33.
A tree is a ....
a)
composer
b)
decomposer
c)
producer
34.
Humans are considered...
a)
consumers
b)
decomposers
c)
producers
35.

A connection of producers and consumers with many food energy paths in an ecosystem is a ____________

a)

ecosystem

b)

food web

c)

food chain

d)

biome

36.
An organism that gets energy from breaking down dead organisms, non-living material or waste
a)
producer
b)
consumer
c)
decomposer
d)
autotroph
37.
Which of the following is NOT a consumer
a)
grass
b)
dog
c)
shark
d)
fish
38.

Where does all energy in food web originate from?

a)

Earth's Core

b)

Water

c)

Plants

d)

The Sun

39.
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.
40.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
41.

Organisms that make their own food, often through photosynthesis.

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

42.

Organisms that must eat to gain energy, and eat producers.

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

43.

Organisms that must eat to gain energy, and eat primary consumers.

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

44.

Organisms that must eat to gain energy, and eat secondary consumers.

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

45.

A rabbit gains energy from eating grass and vegetables. The rabbit is a __________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

46.

A bacteria gains energy from breaking down dead/decaying organic matter. The bacteria is a __________.

a)

Decomposer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

47.

A caterpillar gains energy from eating leaves. A frog gains energy from eating the caterpillar. The frog is a __________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

48.

A caterpillar gains energy from eating leaves. A frog gains energy from eating the caterpillar. A snake gains energy by eating the frog. The snake is a __________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

49.

In this food web, the dragonfly would be a _________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

50.

In this food web, the mouse would be a _________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

51.

In this food web, the berries would be a _________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

52.

In this food web, the bird would be a _________ and a _________.

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

53.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
54.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
55.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
56.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
57.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
58.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
59.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
60.
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. 
61.
Bacteria, fungi, and earthworms are examples of: 
a)
scavengers
b)
predators
c)
prey
d)
decomposers
62.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
63.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
64.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
65.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
66.
What is the role of decomposers in a food chain?
a)
Use sunlight to make food
b)
Eat other organisms to gain energy
c)
Make the food for the whole food chain
d)
Break down dead organisms and add nutrients to the soil
67.

Amount of energy in a food pyramid transferred from one level to the next

a)

0%

b)

10%

c)

78%

d)

100%

68.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
69.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
70.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
71.
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.
72.
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.
73.
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. 
74.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
75.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
76.
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. 
77.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
78.
The fox in this food web would be considered a:
a)
Tertiary Consumer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
79.
The mouse in this food web would be considered a:
a)
Primary Consumer
b)
Producer
c)
Tertiary Consumer
d)
Secondary Consumer
80.
The image provided is an example of a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
81.
The image provided is an example of a(n):
a)
Autotroph
b)
Carnivore
c)
Herbivore
d)
Decomposer
82.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
83.

Passing of energy, in the form of food, from one organism to another

a)

food cycle

b)

food network

c)

food chain

d)

food system

84.

Consumer that eats both plants and animals

a)

omnivore

b)

fungivore

c)

carnivore

d)

herbivore

85.
TRUE  or FALSE: Food webs are several food chains that are linked together.
a)
TRUE
b)
FALSE
86.
What does the arrow mean in a food chain or food web?
a)
An organism comes next
b)
Gets eaten by
c)
Go left
d)
Go right
87.

Identify the producer in the image above.

a)

Grass

b)

Grasshopper

c)

Frog

d)

Snake

e)

Eagle

88.
In this energy pyramid, what is the proper name for ANY ORGANISM ABOVE THE PRODUCER LEVEL?
a)
decomposers
b)
consumers
c)
producers
d)
omnivores
89.
Which group are the producers? 
a)
1 and 2
b)
3 and 4
c)
4
d)
3
90.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
91.
How much energy is available to be passed on to the next trophic level in an ecosystem?
a)
100%
b)
10%
c)
50%
d)
75%
92.
Bears eat a variety of foods including fish, berries, other types of vegetation.  Bears would best be classified as – 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
93.
Snakes eat many types of small mammals including mice and rabbits as well as other lizards.  Snakes would best be classified as a - 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
94.
Horses eat grasses and other plants in order to gain their nutrition.  Horses would best be classified as - 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
95.
What are organisms that use other organisms for food in order to gain energy?
a)
decomposers
b)
producers
c)
herbivores
d)
consumers
96.
Which are decomposers?
a)
humans
b)
trees
c)
red wolves
d)
worms
97.
From where do producers get their energy?
a)
the ground
b)
other animals
c)
decomposers
d)
the sun
98.
The process of using sunlight, carbon dioxide, and water to make sugar and oxygen is called _________?
a)
chlorophyll
b)
evaporation
c)
photosynthesis
d)
transportation
99.
A living organism that puts materials from dead  plants and animals back to the soil is called a ____________?
a)
carnivore
b)
decomposer
c)
herbivore
d)
omnivore
100.
What do the arrows represent in this diagram?
a)
who is being eaten
b)
the flow of energy
c)
the decomposition of organisms
d)
what things can change into
101.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
102.
A secondary consumer 
a)
eats primary consumers
b)
eats producers
c)
eats plants
103.

What would happen if their were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

104.

What would happen if the primary consumers died out?

a)

the producers would grow and the secondary and tertiary consumers would die

b)

producers would die out

c)

consumers would grow

105.

Which of these is a producer?

a)

Insects

b)

Grass

c)

Bacteria

d)

Eagle

106.

Where do producers get most of the energy they need to make their own food?

a)

carbon dioxide

b)

oxygen

c)

sunlight

d)

water

107.

What type of organism is at the beginning of every food chain?

a)

predator

b)

carnivore

c)

producer

d)

herbivore

108.

This diagram shows how energy flows through an eco-system. What is the first source of energy in this pyramid (aka producers)?

a)

sharks and large birds

b)

algae, plankton and seagrass

c)

herbivorous fish, crustaceans and sea urchins

d)

seals and carnivorous fish

109.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
110.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
111.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
112.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
113.
What is another name for producer?
a)
consumer
b)
herbivore
c)
autotroph
d)
lichen
114.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
115.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
116.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
117.
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
118.

Which organisms in figure 1 could be classified as carnivores?

a)

deer, mice, and grasshoppers

b)

grasshoppers, lizards, and shrews

c)

coyotes, shrews, and lizards

d)

mountain lion, deer, and shrews

119.
The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?
a)
A
b)
B
c)
C
d)
D
120.

What do the arrows in a food web represent?

a)

mass

b)

energy flow

c)

matter

d)

organisms

121.
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.
122.

In the food web pictured here, flies provide energy for...

a)

Dragonflies, Turtles, & Frogs

b)

Slugs & Fish

c)

Water Weeds & Algae

d)

Snakes, Frogs, & Kingfishers

123.

Which trophic level contains 'secondary consumers'?

a)

Red

b)

Blue

c)

Green

d)

Yellow

124.

What are all the terms that can be used to describe the Orca whale? Check all that apply!

a)

Producer/Autotroph

b)

Consumer/Heterotroph

c)

Carnivore

d)

Top predator

e)

Primary Consumer

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