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Food Web & Energy

Total questions: 62

Worksheet time: 36mins

Name
Class
Date
1.
An organism that can make its own food is called?
a)
Consumer
b)
Producer
c)
Decomposer
d)
Herbivore
2.
A producer is a (n) ______________.
a)
heterotroph
b)
omnitroph
c)
autotroph
d)
oscartroph
3.
All food chains begin with a ____________.
a)
primary consumer
b)
secondary consumer
c)
producers
d)
scavengers
4.
A consumer is a __________.
a)
heterotroph
b)
autotroph
c)
omnitroph
d)
consumotroph
5.
A consumer gets energy by doing what?
a)
Making it themselves.
b)
Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem.
c)
Soaking it up from the ground.
d)
Feeding on other organisms.
6.
A food web consists of?
a)
Many overlapping food chains in an ecosystem.
b)
A series of events in which one organism eats another and obtains energy.
c)
Amount of energy that moves from one feeding level to another.
d)
Many types of insects that are stuck.
7.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
8.
Which of this energy roles is always located at the bottom of an energy pyramid?
a)
Producer
b)
Second-Level Carnivores
c)
Herbivores.
d)
First-Level Consumers.
9.
This type of consumer only feeds on the bodies of dead animals.
a)
Herbivore.
b)
Decomposer.
c)
Carnivore.
d)
Scavenger
10.
Overlapping food chains in an ecosystem make up....
a)
food web
b)
food chain
c)
niche
d)
symbiosis
11.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
12.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
13.
True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored.
a)
True
b)
False
14.
In this Food Web Pyramid what is the proper name for the organisms above the producer level at the bottom.
a)
herbivores
b)
consumers
c)
carnivores 
d)
omnivores
15.
The deer, grasshopper, and bird are all examples of which type of consumers on this food pyramid?
a)
decomposers
b)
omnivores
c)
carnivore
d)
herbivore
16.

what is a food chain?

a)

organisms that break down waste and dead organism and return the raw materials to the environment.

b)

take away your food

c)

a series of events in which one organism eats another and obtains energy

d)

break down food

17.

what is a food web?

a)

Consists of the many overlapping food chains in an ecosystem

b)

pancake

c)

it is a ecosystem

d)

graphical representation showing the amount of energy at each trophic level in an ecosystem

18.

what is a energy pyramid?

a)

an organism that makes its own food

b)

eat both plants and animals

c)

cupcake

d)

graphical representation showing the amount of energy at each trophic level in an ecosystem

19.

what is a consumer?

a)

eat plants

b)

an organism that makes its own food

c)

organisms that break down waste and dead organism and return the raw materials to the environment.

d)

an organism that obtains energy by feeding on other organisms

20.

what is a producer?

a)

an organism that obtains energy by feeding on other organisms

b)

an organism that makes its own food

c)

that break down waste

d)

eat both plants and animals

21.

what is a decomposer?

a)

eats plants

b)

eat meat only

c)

organisms that break down waste and dead organism and return the raw materials to the environment

d)

are source of all the food in an ecosystem

22.

what is a herbivore?

a)

a animal that eats only meat

b)

a animal that only eats plant

c)

a animal that eat meat and plant

d)

a animal that eats nothing

23.

what is a carnivore?

a)

a animal that eats nothing

b)

a animal that eats meat and plant

c)

a animal that only eats plant

d)

a animal that only eats meat

24.

what is a omnivore?

a)

a animal that eat plant and meat

b)

a animal that eat nothing

c)

a animal that eat meat

d)

a animal that eat plants

25.

true or false: a bear is a omnivore.

a)

false

b)

true

26.

What is the ultimate source of energy for all living things on Earth?

a)

Producers

b)

Consumers

c)

The Sun

d)

Plants

27.

Which choice below transfers the most energy in a food web?

a)

Producer

b)

Omnivore

c)

Consumer

d)

Decomposer

28.

A partial food web of a Canadian forest ecosystem is shown below.


Which organism below is a producer?

a)

Lynx

b)

Red Squirrel

c)

White Spruce

d)

Spruce Grouse

29.

Which organism below eats only consumers?

a)

Soapberries

b)

Red squirrel

c)

Snowshoe hare

d)

Coyote

30.

Between which two organisms is energy directly transferred?

a)

White Spruce and Coyote

b)

Soapberries and Snowshoe Hare

c)

Lynx and White Spruce

d)

Red Squirrel and Snowshoe Hare

31.

Which choice correctly describes the energy transfer in one food chain of this partial food web?

a)

Energy is transferred from white spruce to spruce grouse to lynx.

b)

Energy is transferred from soapberries to snowshoe hare to lynx.

c)

Energy is transferred from lynx to red squirrel to white spruce.

d)

Energy to transferred from soapberries to red squirrel to coyote to lynx.

32.

A partial food web of the Sagebrush-Steppe in the Western U.S. is shown below.


What role does the prickly pear cactus play in the food web above?

a)

Producer – providing energy to consumers

b)

Consumer – providing energy to producers

c)

Decomposer – returning vital nutrients to the soil

d)

Predator – providing energy to consumers

33.

How many different organisms in this food web rely completely on producers for energy?

a)

One

b)

Two

c)

Three

d)

Four

34.

Between which two organisms is energy directly transferred?

a)

Coyote and insects

b)

Badger and snake

c)

Sagebrush and lizard

d)

Pronghorn and badger

35.

Which organism has no consumers who feed on them?

a)

Coyote

b)

Badger

c)

Snake

d)

Mountain lion

36.
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
37.
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
38.
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
39.
Elodea is an autotrophic organism which produces sugars at the bottom of some freshwater food chains. Elodea would best be classified as - 
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
40.
Which organism in this food chain is a producer?
a)
Fish
b)
Grass
c)
Grasshopper
d)
Hawk
41.
In this food pyramid, which level has the greatest amount of energy?
a)
Producers
b)
Primary Consumers
c)
Secondary Consumers
d)
Tertiary Consumers
42.
Which organism in this food chain is a primary consumer?
a)
Fish
b)
Grass
c)
Grasshopper
d)
Hawk
43.
In this food chain, the bacteria is most likely acting as a -
a)
predator
b)
competitor
c)
decomposer
d)
producer
44.

What are the organisms that break down dead stuff?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Organisms

45.

What are animals called in a food chain?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Plants

46.

What are plants called in a food chain?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Scavengers

47.

Which of these organisms would receive energy from the snake?

a)

Plant

b)

Rabbit

c)

Mouse

d)

Hawk

48.

Which type of consumer is always a first consumer?

a)

Herbivore

b)

Omnivore

c)

Carnivore

d)

Producer

49.
A connection of food chains with many food energy paths in an ecosystem is a ____________.
a)
ecosystem
b)
food web
c)
environment
d)
population
50.
How much energy is passed from one trophic level to the next?
a)
1%
b)
10%
c)
50%
d)
100%
51.
What happens to the energy that is not passed on to the next level?
a)

A. 80-90 percent is used by each member of the chain for life processes

b)

B. 80-90 percent may be lost to heat or waste products

c)

C. 80-90 percent may be eaten 

d)

D. A and B both

52.
What is a producer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
53.
What is a consumer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
54.
What is a decomposer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
55.
What do Omnivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
56.
What do Herbivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
57.
What do Carnivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
58.
Who does the owl get energy from? 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Ow
59.
Which best describes what a food chain shows you?
a)
Energy flow through an ecosystem
b)
Food flowing through an ecosystem
c)
Consumers going into other consumers
d)
Who eats who
60.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
61.
Which of these is a decomposer?
a)
Fungi
b)
Hawk
c)
Dog
d)
Grass
62.
True/False
Food webs show you everything an animal eats. Food chains show you one thing.
a)
True
b)
False

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