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Food Chains and Food Webs Practice

Total questions: 61

Worksheet time: 1hrs 9mins

Name
Class
Date
1.

Which one is a primary producer?

a)

grass

b)

trees

c)

sun

d)

wind

2.

Where does the energy start in this food chain?

a)

Plant

b)

Sun

c)

Deer

d)

Wolf

3.
Bacteria and fungi typically serve what role in an ecosystem?
a)
herbivore
b)
carnivore
c)
omnivore
d)
decomposer
4.
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
5.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
6.

Which of these is an organism that does not depend on another living thing for food?

a)

the Sun

b)

an insect

c)

a plant

d)

an animal

7.

Which of these completes the food chain correctly?

a)

a rock

b)

a fox

c)

a plant

d)

an egg

8.

What does the arrow point to in a food chain?

a)

only the plants in a food chain

b)

only the animals in a food chain

c)

the organism that gets the energy

d)

the organism that lives the longest

9.

What is a food chain?

a)

a diagram with animals only

b)

stages an organism goes through as it grows

c)

the place where an organism lives

d)

the path of energy in an environment

10.

Which organism is getting energy from the mouse?

a)

cricket

b)

grass

c)

fox

d)

Sun

11.

Which of these best completes the food chain shown?

a)

a shark

b)

a tree

c)

a rock

d)

a bird

12.

Which of these is a possible food chain for this environment?

a)

Sun → grass → fly → frog

b)

frog → fly → grass → Sun

c)

Sun ← grass ← fly ← frog

d)

Sun → fly → frog → snake

13.
Which of the following best describes the deer's role in the ecosystem?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
14.
Which of the following best describes the wolf's role in this ecosystem?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
15.
Which of the following best describes the blue bird's (in the middle) role in this ecosystem?
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
16.
_________ cannot make their own food, so they need to consume (eat) plants or animals.
a)
consumers
b)
producers
c)
decomposers
17.
The  ____________ provides all the initial energy to plants.
a)
sun
b)
moon
c)
environment
d)
water
18.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
19.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
20.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
21.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
22.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
23.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
24.
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. 
25.
Bacteria, fungi, and earthworms are examples of: 
a)
scavengers
b)
predators
c)
prey
d)
decomposers
26.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
27.
A community of living and nonliving things in their natural environment makes up a 
a)
food web
b)
ecosystem
c)
food chain
28.
Lions only eat buffalo, antelopes, zebras and crocodiles. They are called __________.
a)
Omnivore
b)
Herbivore
c)
Carnivore
d)
Delivore
29.
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
30.

What type of feeder is a human?

a)

carnivore

b)

omnivore

c)

herbivore

d)

detritivore

31.
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
32.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
33.
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
34.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
35.

What do tertiary consumers eat?

a)

eat the primary consumer

b)

eat plants and animals

c)

eat the producer

d)

eat the secondary consumer

36.

What is a trophic level?

a)

Each step in a food chain.

b)

Amount of energy available in an ecosystem.

c)

Each step in an ecosystem.

d)

Total amount of living organic matter in an ecosystem.

37.
An organism's _________ is defined as the environment in which it lives.
a)
habitat
b)
niche
c)
social structure
d)
ecosystem
38.

What would be a good example of a primary consumer?

a)

carnivore

b)

detrivore

c)

decomposer

d)

herbivore

39.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
40.

Which of the following has the correct order of the trophic levels for a food web or chain.

a)

herbivores-decomposer-autotrophs-carnivores-

b)

decomposer-carnivores-autotrophs-herbivores

c)

producer-tertiary consumer-secondary consumer-primary consumer

d)

producer-primary consumer-secondary consumer-tertiary consumer-decomposer

41.

A food _______ is a series of events in which one organism eats another and obtains energy.

a)

chain

b)

web

c)

pyramid

d)

plate

42.
All animals are...
a)
producers
b)
consumers
c)
carnivores
d)
omnivores
43.
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
44.
A connection of food chains with many food energy paths in an ecosystem is a ____________.
a)
ecosystem
b)
food web
c)
environment
d)
population
45.
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.
46.

A bear is a consumer because.......

a)

it makes its own food

b)

it gets its nutrients by eating other living things

47.

The energy within a food chain is transferred by organisms eating and being eaten.

a)

True

b)

False

48.

Organisms of the same species living in the same area

a)

community

b)

species

c)

population

49.

Different species that exist in an ecosystem

a)

community

b)

population

c)

species

50.

Producers are generally found at the beginning

of a food chain. Which statement best explains

why this is true?

a)

A) Producers are usually smaller in size than

consumers.

b)

B) Producers do not rely on other organisms

for food.

c)

C) There are always more consumers than

producers in food chains.

d)

D) Consumers are always more complex

organisms than producers.

51.

Which would be the most likely effect of a

drastic reduction in all the producer organisms

in a meadow environment?

a)

A) The grasshoppers would multiply rapidly.

b)

B) The rabbit population would decrease.

c)

C) All of the snake populations would

increase.

d)

D) All of the decomposers would die.

52.

For a producer to maintain itself, which factor

must be present in its environment?

a)

A) carnivores

b)

B) herbivores

c)

C) sunlight

d)

D) parasites

53.

Which sequence of organisms represents a food chain within this food web?

a)

A) tadpoles —> algae -> daphnia —> back swimmers

b)

B) sedges —> ants —> frogs —> kookaburras

c)

C) algae —> daphnia —> decayed material —> bacteria

d)

D) dragonflies —> sedges —> ants -> centipedes

54.

An animal that hunts other animals for food

a)

Predator

b)

Prey

c)

Herbivore

d)

Producer

55.

Each step in a food chain or food web

a)

Trophic level

b)

Adaptations

c)

Link

d)

Ecological pyramid

56.

Name the Trophic Levels

a)

Producers

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

e)

Quaternary Consumer

57.

The total mass of living tissue within a trophic level

a)

Biomass

b)

Trophic levels

c)

Ecological pyramid

d)

Biomagnification

58.

A diagram that shows the biomass of organisms at each trophic level

a)

Ecological pyradmid

b)

Food chain

c)

Food web

d)

Carnivores

59.

A food web is ____

a)

one list of who eats whom

b)

all of the possible feeding relationships in an ecosystem

60.

A fox who ate a rabbit who ate a plant is a __________ consumer

a)

primary

b)

secondary

c)

tertiary

d)

quaternary

61.

Food chains are usually contain no more than

a)

Two Organisms

b)

Three Organisms

c)

Four Organisms

d)

Six Organisms

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