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Energy in relationShips

Total questions: 145

Worksheet time: 2hrs 12mins

Name
Class
Date
1.

Which of these is a producer?

a)

Insects

b)

Grass

c)

Bacteria

d)

Eagle

2.

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

a)

carbon dioxide

b)

oxygen

c)

sunlight

d)

water

3.

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

a)

predator

b)

carnivore

c)

producer

d)

herbivore

4.

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

5.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
6.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
7.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
8.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
9.
What is another name for producer?
a)
consumer
b)
herbivore
c)
autotroph
d)
lichen
10.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
11.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
12.
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
13.
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
14.

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

15.
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
16.

What do the arrows in a food web represent?

a)

mass

b)

energy flow

c)

matter

d)

organisms

17.
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.
18.

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

19.

Which trophic level contains 'secondary consumers'?

a)

Red

b)

Blue

c)

Green

d)

Yellow

20.

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

21.

What is a food chain?

a)

The flow of energy from one thing to another

b)

The way animals eat each other

c)

The way the sun makes everything

d)

How the plants grow

22.
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
23.
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
24.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
25.
What do Herbivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
26.

What do plants need to make their own food?

a)

Sun, Water, and Animals

b)

Sun, Coke, and Soil

c)

Sun, Water, and Soil

d)

Nothing at all

27.

An example of a predator:

a)

shark

b)

mouse

c)

rabbit

28.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
29.

What is a decomposer?

a)
b)
c)
d)
30.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
31.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
32.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
33.
Which type of consumer eats meat and plants?
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Plants
34.

Label this food chain

a)sun
b)producer
c)primary consumer
d)secondary consumer
e)decomposer
1
2
3
4
5
1)
2)
3)
4)
5)
35.

A ​ (a)   is a living thing that consumes food.

Choose from the below words
consumer
producer
herbivore
omnivore
carnevore
carnivore
decomposer
36.

Mark all the organisms that are considered producers

a)
b)
c)
d)
e)
37.

Giraffes have long necks that help them reach leaves high up in trees. They get all the energy they need from plants such as this. What type of consumer are giraffes.

a)

carnivore

b)

omnivore

c)

herbivore

d)

decomposer

38.

Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put energy that stores in the plant back into the ground for other plants to use. What type of consumer are mushrooms?

a)

carnivore

b)

omnivore

c)

herbivore

d)

decomposer

39.

How much energy is passed along every trophic level increase?

a)

50%

b)

25%

c)

100%

d)

10%

40.
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.
41.

Which type of organism should replace the X in the food web?

a)

an omnivore

b)

an herbivore

c)

a carnivore

d)

a producer

42.

What do the arrows in a food web represent?

a)

mass

b)

energy flow

c)

matter

d)

organisms

43.

What happens as you move higher in the energy pyramid?

a)

more organisms

b)

fewer organisms

c)

number of organisms does not change

d)

organisms die

44.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
45.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
46.

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

47.
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
48.
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
49.

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

50.

If a primary consumers have 650 kcals of energy available to them in the producers they eat, how many kcals of energy make it into the primary consumer trophic level?

a)

6.5

b)

65000

c)

650

d)

65

51.

An owl eats a rat that lived in an ecosystem where there was 2,800 kcals of energy in the insect population that the rat consumed. How many kcals would transfer to the trophic level the owl is in?

a)

28

b)

280

c)

2,800

d)

28,000

52.

A hawk eats a mouse that lived in an ecosystem where there is 10,000 kcals of energy in the insect population the mouse consumes. How much energy, in kcals, moves up to the trophic level the hawk is in?

a)

1 kcals

b)

10 kcals

c)

100 kcals

d)

1000 kcals

53.

What percent energy from the producers is available to primary consumers?

a)

25%

b)

12%

c)

8%

d)

10%

54.
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%
55.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
56.
a deer population has significantly increased, the best hypothesis is 
a)
the deer's main predator has been eliminated
b)
competition increased
c)
decreased water levels of local ponds
d)
organisms that rely on similar food sources migrated to the area
57.
an organism that can produce its own food through photosynthesis
a)
consumer
b)
heterotroph
c)
autotroph
d)
herbivore
58.
What is the best explanation for an energy pyramid?
a)
It shows the FLOW of energy from one organism to the next. 
b)
It shows HOW much energy flows through a food web
c)
It shows the MEMBERS in a single organism
59.
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
60.
About how much percent of energy is passed on from one organism to to the next on a food web pyramid. 
a)
100 percent of all energy gets passed
b)
45 percent of all energy gets passed
c)
10 percent of all energy gets passed
d)
0 percent of all energy gets passed
61.

Which of the following is producer/autotroph?

a)

rabbit

b)

frog

c)

tree

d)

worm

62.
What do we call a type of consumer that only eats the remains of dead organisms?
a)
Consumer
b)
Third level consumer
c)
scavenger
d)
omnivore
63.
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
64.

Using food web which of the following is a secondary consumer?

a)

snake

b)

worm

c)

butterfy

d)

squirrel

65.

Using the food web what would happen if the eagle became extinct?

a)

The frog population would decrease.

b)

The frog population would increase.

c)

The butterfly population would increase.

d)

The snake population would decrease.

66.

The number of organisms at the top of the energy pyramid are usually smaller because the hawk

a)

needs more energy

b)

has more predators

c)

have more offspring

d)

eat producers

67.

The graph shows that

a)

wolf population control the rabbit population

b)

the rabbit population control the wolf population

c)

the two populations do not affect each other

d)

wolves do not hunt rabbits

68.

Which two animals below are primary consumers

a)

moth and ant

b)

mushroom and moth

c)

ant and hawk

d)

spider and mouse

69.

In a food web the arrow always points to

a)

the consumer

b)

the prey

c)

producer

d)

autotroph

70.

If the GRASS became diseased, which organisms would also be NEGATIVELY affected?

a)

Rabbits only

b)

Rabbits and snakes

c)

Rabbits, snakes, and hawks

d)

Rabbits and hawks (snakes benefit)

71.

What happened after 12 months after the hawk population was MOSTLY killed off?

a)

Snakes increased, Rabbits decreased, and Grass increased. Then everything balanced back out to almost normal.

b)

Initially everything was stable, but the snake population killed all the rabbits and then died out themselves.

c)

Everything went down significantly at first, then the hawks recovered.

d)

Everything except the grass died off at first, then the rabbits recovered.

72.

Which statement best describes what will happen if the population of herbivores in the community decreases?

a)

the population of foxes will increase

b)

the population of hawks will increase

c)

the population of rabbits will increase

d)

the population of meadow plants will increase

73.
Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem?
a)
The rabbit population may increase
b)
The rabbit population may decrease
c)
The rabbit population may increase first, then decrease
d)
The rabbit population will remain the same
74.
Which terms best describe heterotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
75.
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.
76.

A relationship between two species is called ______________.

a)

Speciation

b)

Antagonism

c)

Partnership

d)

Symbiosis

77.

Mutualism is when---

a)

both organisms benefit from the relationship

b)

when only one organism benefits and the other is hurt"mutual"

c)

means both when one organism benefits and the other is not effected

78.

Commensalism is when ----

a)

both organisms benefit from the relationshipthis is when BOTH are helped

b)

when one organism benefits and the other is not effected

c)

only one organism benefits while the other is hurt by the relationship

d)

is when one is helped and the other is harmed

79.

Parasitism is when ----

when one organism benefits and the other is not effectedone benefits and the other is neither helped nor harmed only one organism benefits and the other is harmedboth benefit both organisms benefit from the relationship

a)

when one organism benefits and the other is not effectedone benefits and the other is neither helped nor harmed

b)

only one organism benefits and the other is harmed

c)

both benefit both organisms benefit from the relationship

80.

Which of the following is an example of parasitism?

a)

human and mosquito

b)

bee and flower

c)

shark and remora

81.

Why is the bee and flower an example of mutualism?

a)

Both the bee and flower benefit.

b)

The flower benefits and the bee is not changed.

c)

Only the bee benefits and the flower is harmed.

82.

Which of the following symbiotic relationships is considered parasitic?

a)

Bees transporting pollen from flowers

b)

Pilot fish swimming under sharks

c)

Tapeworm in an intestinal tract

d)

Birds eating the insects from the back of a hippopotamus

83.

What does symbiosis mean?

a)

living separately, no relationship between two species

b)

living together, close relationship between two species

c)

living in a community with no interaction between each other

84.

Digestive bacteria and humans - Human beings have what are often called “good” bacteria in their digestive systems. This “good” bacteria exists in order to help the human to digest food.

a)

Mutalism

b)

Commensalism

c)

Parasitism

85.

What is mutualism?

a)

A close, long lasting relationship when both parties benefit

b)

A one-sided relationship where one of the organism benefits greatly and the other is not helped nor harmed or damaged.

c)

One organism benefits from the relationship at the expense of the other.

86.

What is parasitism?

a)

A close, long lasting relationship when both parties benefit

b)

A one-sided relationship where one of the organism benefits greatly and the other is not helped nor harmed or damaged.

c)

One organism benefits from the relationship at the expense of the other.

87.

What is commensalism?

a)

A close, long lasting relationship when both parties benefit

b)

A one-sided relationship where one of the organism benefits greatly and the other is not helped nor harmed or damaged.

c)

One organism benefits from the relationship at the expense of the other.

88.

A spider uses a tree to build its web. The tree is not impacted but the spider needs the tree for shelter and safety. What kind of symbiosis is being represented?


Mutualism

a)

Commensalism

b)

Parasitism

89.

A fungus provides nutrients to algae and the algae provides food to fungus. What kind of symbiosis is being represented? *

a)

Mutualism

b)

Commensalism

c)

Parasitism

90.

A Remora fish, a type of suckerfish, attach themselves to sharks and other large fish. They detach when the larger fish feeds and eat the leftover scraps. What kind of symbiosis is being represented?

a)

Mutualism

b)

Commensalism

c)

Parasitism

91.

A head lice live on small amounts of blood in the scalp. The host human feels itchiness in their hair as the lice bit and move around. This is an example of what kind of symbiosis?

a)

Mutualism

b)

Commensalism

c)

Parasitism

92.

True of False: The following is an example of competition, Both wolves and bears hunt the same prey in their habitats. But if the bears consume all the prey in the are, the wolves will die off, and the habitat will be imbalanced.

a)

True

b)

False

93.

In which type of symbiotic relationship do both species benefit (+,+) ?

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Predation

94.

In which type of symbiotic relationship does one species benefit while the other species is not affected (+, 0)?

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Predation

95.

In which type of symbiotic relationship does one species benefit while the other species is harmed (+,-)?

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Predation

96.

True or False: Symbiosis only works with animals.

a)

True

b)

False

97.
Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
98.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs  in the flowers where  the larvae hatch and eat some of the developing seeds. Both species benefit.  
a)
Mutualism 
b)
Parasitism 
c)
Commensalism 
99.

Overall, all the interactions between organisms in ecosystems...

a)

Keep ecosystems & populations unstable and random

b)

Keep ecosystems & populations stable and balanced

100.

Which of the following is NOT a symbiotic relationship?

a)

Competition

b)

Commensalism

c)

Mutualism

d)

Parasitism

101.

How does competition between organisms maintain ecosystem stability and biodiversity?

a)

The winners of the competition increase in population size and dominate the ecosystem

b)

Both organism populations become stronger and larger as a result of the competition

c)

The population sizes are kept in check due to limited resources

d)

All of the above are true

102.

Commensalism is a symbiotic relationship in which what occurs between the organisms?

a)

both organisms are harmed

b)

one benefits, the other is unaffected

c)

one benefits, the other is harmed

d)

one benefits by eating the other

103.

Fungus and lichens live together. The fungus gets food from the algae while the algae gets a place to live.

a)

predation

b)

mutualism

c)

commensalism

d)

parasitism

104.

The parasitic roundworm anchors itself to the wall of the intestine and causes diseases to the organisms.

a)

competition

b)

mutualism

c)

commensalism

d)

parasitism

105.

Spiders create their webs on stems and trunks of plants.

a)

predation

b)

mutualism

c)

commensalism

d)

parasitism

106.

A mouse is captured and eaten by an owl.

a)

predation

b)

competition

c)

mutualism

d)

parasitism

107.

Two angelfish are struggling for the best territory in a small fishbowl.

a)

predation

b)

competition

c)

commensalism

d)

parasitism

108.

Cheetahs and lions feeding on the same prey.

a)

mutualism

b)

predation

c)

competition

d)

commensalism

109.

Orchids perch on sturdier plants. They cause no harm to the sturdy plant. They benefit simply from being exposed to sunlight.

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

110.

The sea lamprey uses its oral disc to attach itself to a larger fish then bores a hole through the fish's flesh and sucks its blood.

a)

competition

b)

mutualism

c)

commensalism

d)

parasitism

111.

A snake catches and swallows a frog

a)

predation

b)

mutualism

c)

competition

d)

parasitism

112.

A lion devours a deer

a)

predation

b)

mutualism

c)

competition

d)

commensalism

113.

A shrimp digs a hole to burrow itself and a goby fish. In case of danger, the goby fish touches the shrimp with its tail to warn it.

a)

predation

b)

mutualism

c)

competition

d)

commensalism

114.

Chimpanzees fight to achieve dominance in the tribe

a)

predation

b)

commensalism

c)

competition

d)

parasitism

115.

A fly is trapped in a spider's web

a)

competition

b)

mutualism

c)

parasitism

d)

predation

116.

A yellow rattle plant gets some of its nutrients from the roots of neighboring plants.

a)

parasitism

b)

mutualism

c)

predation

d)

competition

117.

Ten tomato plants are grown in one small pot with limited amount of soil.

a)

commensalism

b)

predation

c)

parasitism

d)

competition

118.

A short plant receives less sunlight because it is shaded by a tall plant

a)

predation

b)

mutualism

c)

competition

d)

commensalism

119.

Torsalo flies catch smaller flies so they can glue their eggs on them. the captive flies are released unharmed, but carry the eggs until they land on a host.

a)

commensalism

b)

mutualism

c)

parasitism

d)

competition

120.

An ameoba in humans causes infection that leads to liver abscesses and dysentery.

a)

parasitism

b)

predation

c)

mutualism

d)

commensalism

121.
Some shrimp and crab live and capture food from within the tentacles of giant anemones. 
a)
Parasitism
b)
Commensalism
c)
Mutualism
122.
Some shrimp and crab live and capture food from within the tentacles of giant anemones. 
a)
Parasitism
b)
Commensalism
c)
Mutualism
123.
A pearlfish spends the day inside the alimentary tract, or intestines, of a sea cucumber. The fish emerges from the sea cucumber at night to feed on small crustaceans. The pearlfish gets a safe place to live. The sea cucumber does not gain anything from the relationship, nor is it harmed. 
a)
Mutualism
b)
Commensalism
c)
Parasitism
124.
A cymothoid isopod lives inside the mouth of a snapper fish. The isopod severs blood vessels in the fish’s tongue, causing the tongue to atrophy and degenerate.The isopod then hooks its pereopods, or legs, to the base of the fish’s tongue,essentially replacing the tongue. The isopod stays there for the rest of its life, feeding on blood, mucus, and stray pieces of food from the fish.
a)
Commensalism
b)
Parasitism
c)
Mutualism
125.
A boxer crab carries a pair of small anemones in its chelipeds, or claws. When approached by a predator, the crab waves the stinging tentacles of the anemones to deter the predator. The anemones benefit from the small particles of food dropped by the crab during feeding. 
a)
Commensalism
b)
Mutualism
c)
Parasitism
126.
An alpheid shrimp digs and maintains a deep burrow. While underground, the shrimp is safe. Above ground, it is vulnerable to predators. A go by fish lives in the burrow with the shrimp. The go by fish sits at the entrance, keeping watch for predators, and signals the shrimp with a flick of its tail when it is safe to come out. Or, if a predator swims by, the go by darts into the burrow and the shrimp retreats further inside.These two animals are completely dependent on each other—the go by benefits by getting a burrow to live in and the shrimp knows when predators are near. 
a)
Parasitism
b)
Mutualism
c)
Commensalism
127.
Corals feed off the byproducts of a microscopic algae living within their own tissue,called zooxanthellae. The photosynthetic activity of the algae is vital to the survival of the coral animals, which use the energy to extract calcium from the seawater and build their calcareous skeletons. The zooxanthellae are protected by the hard coral and obtain plant nutrients from the coral. 
a)
Mutualism
b)
Commensalism
c)
Parasitism
128.
Some species of barnacles attach themselves to sea turtles or whales. As the whales or sea turtles travel, the barnacles gain access to food in nutrient-rich waters. Their host neither benefits nor is harmed by its riders.
a)
Mutualism
b)
Parasitism
c)
Commensalism
129.
A tapeworm needs to eat food that is already digested, so it lives in the intestines of a dogfish shark and derives nourishment from the shark. As a result of the tape worm infestation, the shark is weakened and more vulnerable to disease and predation. 
a)
Parasitism
b)
Commensalism
c)
Mutualism
130.
Imperial shrimp attach themselves to sea cucumbers and get transported by their host to a large area of potential food with only a minimal expenditure of energy. They have been observed getting off their host cucumber to feed in productive areas and then getting back on for a ride to the next spot. 
a)
Mutualism
b)
Commensalism
c)
Parasitism
131.
The siboglinid tube worm, found at deep-sea hydrothermal vents and cold seeps,has no digestive tract. It relies on symbiotic bacteria that live in the tube worm’s tissues. The bacteria oxidize hydrogen sulfide or methane for the worm.
a)
Mutualism
b)
Commensalism
c)
Parasitism
132.
Which organisms are producers?
a)
Chemosynthetic bacteria and symbiotic bacteria
b)
Amphipods and zooplankton
c)
Tubeworms and zoarcid fish
d)
Octopuses and mussels
133.

What is another term for plants and algae that make their own food from sunlight?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Scavengers

134.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
135.

Select the primary consumers.

A
B
C
D
E
F
G
H
I
J
136.

Select the herbivores.

A
B
C
D
E
F
G
H
I
J
137.

Select the secondary consumers.

A
B
C
D
E
F
G
H
I
J
138.

Select the tertiary consumers.

A
B
C
D
E
F
G
H
I
J
139.

What are two organisms that compete for the butterfly as a food source?

A
B
C
D
E
F
G
H
I
J
140.

What is the source of energy for this food web?

A
B
C
D
E
F
G
141.

Which organism (or organisms) is an omnivore?

A
B
C
D
E
F
G
142.

Which organism (or organisms) is a producer?

A
B
C
D
E
F
G
143.

Which organism (or organisms) is a primary consumer?

A
B
C
D
E
F
G
144.

Which organism (or organisms) is a tertiary consumer?

A
B
C
D
E
F
G
145.

Label the p

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

1
2
3
4
1)
2)
3)
4)

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