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Flow of Energy

Total questions: 50

Worksheet time: 28mins

Name
Class
Date
1.

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 the direction the energy is flowing between organisms.

d)

They represent how water is transferred within a habitat.

2.
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. 
3.
A wolf eats a rabbit, that just ate some berries.  What would you call the rabbit?
a)
Producer
b)
Omnivore
c)
Primary Consumer
d)
2nd order Heterotrph
4.
What is indicated by the diagram?
a)
Food web
b)
Food chain
c)
Food map
d)
Food menu
5.
Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?
a)
Chordates
b)
Fungi
c)
Plants
d)
Molds
6.
Eat primary consumers (can be carnivores and omnivores)
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Quaternary Consumers 
d)
Top Predators 
7.

In the food web above, what organism is a tertiary consumer?

a)

Fox

b)

Frog

c)

Vole

d)

Grass

8.

What term describes the position of an organism on the food chain?

a)

food web

b)

energy levels

c)

trophic levels

d)

matter cycle

9.
In this food chain, what will happen if the frogs become extinct?
a)
The snakes will increase.
b)
The grasshoppers will decrease.
c)
The eagles will remain the same.
d)
The grasshoppers will increase.
10.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True 
b)
False
11.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
12.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
13.

Which of the following would eat a hamburger with lettuce on it?

a)

omnivore

b)

carnivore

c)

herbivore

d)

detritivore

14.

What role do bobcats play in a

forest food web?

a)

Bobcats break down dead

plants and animals and return

nutrients to the soil.

b)

Bobcats are consumers of

marmots and grouses.

c)

Bobcats produce their own

energy.

d)

Bobcats are predators of

grasses and berries.

15.

A wetlands food chain is shown below.


Which table shows the correct role of each organism?

a)
b)
c)
d)
16.

A partial desert food web is shown. Which type of organism is missing from this food web?

a)

Decomposer

b)

Predator

c)

Consumer

d)

Producer

17.

A partial rain forest food web is shown. How many types of organisms in this food web obtain energy directly from producers?

a)

One

b)

Two

c)

Three

d)

Four

18.

A partial forest food web is shown. What role do

turkeys play in this food web?

a)

Decomposer

b)

Predator

c)

Consumer

d)

Producer

19.

A partial hedgerow food web is shown. Which table shows the correct role of organisms in the food web?

a)
b)
c)
d)
20.

A partial swamp food web is shown. In this food web,

energy is transferred directly between -

a)

mosquitos and

mudskippers

b)

kingfishers and

mangrove crabs

c)

prawns and

mosquito larvae

d)

kingfishers and

mangrove trees

21.

A partial tundra food web is shown. Based on the information in the food web, which of the following food

chains shows one way energy flows in this ecosystem?

a)
b)
c)
d)
22.

A partial forest food web is shown. Which statement correctly describes the transfer of energy in a food chain in this ecosystem?

a)

Energy is transferred from

berries to bears to elk.

b)

Energy is transferred from

grasses to marmots to

bobcats.

c)

Energy is transferred from

bobcats to grouses to grasses.

d)

Energy is transferred from

grasses to elk to grouses.

23.

The table below lists some of the types of animals that live in an ecosystem and what they eat. Based on the information in the table, which of the following food

chains shows one way energy flows in this ecosystem?

a)
b)
c)
d)
24.

A partial food web is shown. Which organisms in this food

web eat only producers?

a)

Fruit bats and

bandicoots only

b)

Insects and fruit bats

only

c)

Rufous owls, bandicoots,

and pythons only

d)

Insects only

25.

A partial rain forest food web is shown. Which organisms in

this food web eat only consumers?

a)

Spider monkey and butterfly only

b)

Spider, poison dart frog, and butterfly only

c)

Jaguar, carcara, spider and poison dart frog only

d)

Poison dart frog and jaguar only

26.

The table describes the energy sources for four unidentified

organisms. Which statement correctly identifies the roles of the organisms?

a)

Organisms 1 and 3 are consumers.

b)

Organisms 3 and 4 are producers.

c)

Organisms 1 and 2 are decomposers.

d)

Organisms 2 and 3 are producers.

27.

The table describes the energy sources for four unknown organisms. Which table correctly identifies the roles of the organisms?

a)
b)
c)
28.

A partial forest food web is shown. Which organisms in this

food web eat only consumers?

a)

Squirrels, turkeys, and caterpillars only

b)

Squirrels, turkeys, caterpillars, and skunks only

c)

Hawks, bobcats, and owls only

d)

Bobcats only

29.

The diets of some forest animals are described in the table below. How many types of animals in this food web obtain energy directly from at least one producer?

a)

One

b)

Two

c)

Three

d)

Four

30.

A partial food web of organisms who live in and around the Amazon River is shown. Which change would most likely occur if all the producers in this ecosystem were removed?

a)

The populations of consumers would increase.

b)

The producers would move to a new location.

c)

The populations of consumers would decrease.

d)

Pacus would become producers.

31.

A partial food web of organisms who live in and around the Amazon River is shown. Which statement describes the transfer of energy in a food chain in this ecosystem?

a)
b)
c)
d)
32.

Which organisms do not directly consume another organism for energy?

a)

Ravens and quails

b)

Cacti and seeds

c)

Kangaroo rats and crickets

d)

Gila monsters and desert tortoises

33.

A(n) ________ gets its nutrients by feeding on dead things.

a)

herbivore

b)

omnivore

c)

decomposer

d)

producer

34.

A(n) __________ is an animal that eats other organisms

a)

photosynthesis

b)

omnivore

c)

herbivore

d)

consumer

35.

A person who eats both plants and animals is called a(n) _________.

a)

nutrients

b)

omnivore

c)

decomposer

d)

herbivore

36.

Plants use ________ to make their own food.

a)

nutrients

b)

photosynthesis

c)

habitat

d)

producer

37.

Which member of the food web gets all of its energy from producers?

a)

Foxes

b)

Owls

c)

Birds

d)

Rabbits

38.

Which organism consumes snakes?

a)

frog

b)

green plants

c)

hawk

d)

rabbit

39.

A food web is a set of linked food chains.

a)

True

b)

False

40.

An organism which gets its nutrients from dead things, fallen leaves and animal droppings

a)

Vampire

b)

Decomposer

c)

Consumer

d)

Scavenger

41.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
42.
Which of the following is NOT a consumer
a)
grass
b)
dog
c)
shark
d)
fish
43.

In a food web, arrows point towards:

a)

the thing that gets the energy

b)

the thing that is getting eaten

44.
This is an example of a
a)
food chain
b)
water cycle
c)
food cycle
d)
food web
45.

If all of the squirrels were removed from the food web above, which organism's population would decrease?

a)

Mountain Lions

b)

Antelopes

c)

Hawks

d)

Coyotes

46.

If the mouse population decreases, which statement about the food web will be true?

a)

The grass population will decrease.

b)

The hawk population will increase.

c)

The grass population will increase.

d)

The wildflower population will decrease.

47.
If the population of prey increases, the population of predators will ________because of the availability of food.
a)
decrease
b)
stay the same
c)
increase
48.
All food chains_____________________
a)
have more consumers than producers
b)
produce and use same amount of energy
c)
begin with a producer
d)
are unhealthy 
49.

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

50.

An animal that is hunted and eaten for food is a

a)

predator

b)

prey

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