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Energy Flow

Total questions: 87

Worksheet time: 2hrs 35mins

Name
Class
Date
1.

All herbivores are _____.

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

2.

If an organism uses photosynthesis to make its energy, it is a _____.

a)

tertiary consumers

b)

producer

c)

primary consumer

d)

secondary consumer

3.

An owl who eats snakes is a _________.

a)

tertiary consumers

b)

primary consumer

c)

producer

d)

secondary consumer

4.

A rat that eats seeds ins an example of a _________.

a)

primary consumer

b)

producer

c)

secondary consumer

d)

tertiary consumers

5.

Any living thing, such as a fox, mouse, plant, bacteria, is an example of an ________.

a)

organism

b)

pet

c)

abiotic factor

d)

ecosystem

6.

A snake that eats a mouse which feeds primarily on seeds is an example of a

a)

tertiary consumers

b)

primary consumer

c)

secondary consumer

d)

producer

7.

All the living things in an ecosystem are the _______ of an ecosystem.

a)

ecosystem

b)

abiotic factors

c)

biotic factors

d)

plants

8.

A _________ is a diagram of all of the food chains in a single ecosystem.

a)

food web

b)

food chain

c)

energy pyramid

d)

primary consumer

9.

A diagram that shows one possibility of energy flow in an ecosystem.

a)

food web

b)

energy pyramid

c)

food chain

d)

secondary consumer

10.

The sun, water, oxygen, and climate are all examples of _____.

a)

biotic factors

b)

abiotic factors

c)

plants

d)

producers

11.

Trees, flowers, and seeds are all examples of _______.

a)

producers

b)

abiotic factors

c)

a community

d)

a food chain

12.

As energy makes its way up the food pyramid only ______ of energy from one organism gets passed on to the next organism.

a)

10%

b)

20%

c)

30%

d)

40%

13.
Pick the best name for the picture.
a)
Food Web
b)
Food Chain 
c)
Ecosystem
d)
Habitat
14.
What is the definition of the word consumer?
a)
An animal that eats only plants
b)
An animal that eats other animals
c)
An organism that obtains energy by feeding on other organisms.
d)
The transfer (movement) of energy.
15.
What is the definition of the word producer?
a)
An organism that can make its own food.
b)
An organism that obtains energy by feeding on other organisms.
c)
An animal that eats only plants
d)
An animal that eats other animals
16.
What does the arrow in a food chain or food web mean?
a)
A series of steps in which organisms transfer (move) energy by eating and being eaten.
b)
An organism that breaks down wastes and dead organisms.
c)
Shows what eats what and consists of many food chains in an ecosystem
d)
The transfer (movement) of energy.
17.
What is the definition of the word carnivore?
a)
An organism that obtains energy by feeding on other organisms.
b)
An animal that eats only plants
c)
An animal that eats other animals
d)
An animal that eats both plants and animals
18.
What is the definition of the word omnivore?
a)
An animal that eats only plants
b)
An animal that eats both plants and animals
c)
An animal that eats other animals
d)
An organism that can make its own food.
19.
What does a food chain look like?
a)
One line of how energy flows in an ecosystem. 
b)
Many lines of how energy flows in an ecosystem. 
20.
What is the definition of the word herbivore?
a)
An organism that obtains energy by feeding on other organisms.
b)
An animal that eats only plants
c)
An animal that eats other animals
d)
An animal that eats both plants and animals
21.
What is the definition of a food chain?
a)
An animal that eats only plants
b)
A series of steps in which organisms transfer (move) energy by eating and being eaten.
c)
The transfer (movement) of energy.
d)
Shows what eats what and consists of many food chains in an ecosystem
22.
What is the definition of the word decomposer?
a)
Shows what eats what and consists of many food chains in an ecosystem
b)
The transfer (movement) of energy.
c)
An animal that eats other animals
d)
An organism that breaks down wastes and dead organisms.
23.
What is the definition of a food web?
a)
Shows what eats what and consists of many food chains in an ecosystem
b)
A series of steps in which organisms transfer (move) energy by eating and being eaten. Moves in one direction. 
c)
The transfer (movement) of energy.
d)
A spiders habitat, and what it eats. 
24.
Pick the best name for the picture.
a)
Food Web
b)
Food Chain 
c)
Ecosystem
d)
Habitat
25.
What does a food web look like?
a)
One line of how energy flows in an ecosystem. 
b)
Many lines of how energy flows in an ecosystem. 
26.

Animal that gets its energy and nutrition from eating plants.

a)

Parasite

b)

Herbivore

c)

Carnivore

d)

Ominvore

27.

Animal that gets its energy and nutrition from eating meat.

a)

Detritivore

b)

Ominvore

c)

Carnivore

d)

Herbivore

28.

Organisms that produce their own food mostly through photosynthesis (producers). Examples are plants and algae.

a)

Ominvore

b)

Detritivore

c)

Heterotroph

d)

Autotroph

29.

Organisms that get their energy and nutrition from other organisms (consumers).

a)

Heterotroph

b)

Autotroph

c)

Photosynthetic Organisms

30.

Heterotrophs that get energy and nutrition from dead or decaying organisms or their waste products and recycle nutrients back to the ecosystem.

a)

Producer

b)

Trophic

c)

Decomposer

d)

Autotroph

31.

The level in an Ecological pyramid that includes all the organisms that share the same place in a food chain.

a)

Trophic Levels

b)

Toxic Levels

c)

KeKe Levels

d)

Environmental Systems

32.

which number on the diagram below sows the level of secondary consumers?

a)

3

b)

2

c)

1

33.

in an energy pyramid, which way does the energy transfer?

a)

from top of the pyramid to the bottom

b)

from the bottom of the pyramid to the top

c)

all of these

d)

none of these

34.
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
a)
There would be a decrease in the small bird population.
b)
There would be a decrease in the grass/flowers population.
c)
There would be a decrease in the mice population.
d)
There would be an increase in the grass/flowers population.
35.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
36.
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%
37.

What is an invasive species?

a)

A native (naturally found) species which are added to an area.

b)

A non-native (not naturally found) species added to an area.

c)

A keystone species in an environment

d)

none of the above

38.

Models the complex network of feeding relationships

a)

trophic levels

b)

food webs

c)

food chains

39.

An autotroph can also be called a

a)

animal.

b)

consumer.

c)

heterotroph.

d)

producer.

40.

In the food chain pictured, what type of organism is the bird?

a)

producer

b)

primary consumer

c)

secondary consumer

d)

tertiary consumer

41.

What would happen to the bird if the green fish died out?

a)

the bird population would grow

b)

the bird population would die out

c)

the smaller fish will die out

42.

What is the bottom layer of the an energy pyramid?

a)

producer

b)

tertiary consumer

c)

Secondary consumer

d)

primary consumer

43.

the top layer of an energy pyramid a primary consumer?

a)

true

b)

false

44.

What does an energy pyramid show?

a)

Energy flow in a community

b)

Longest lifespans

c)

The stronger animal the higher it is on the pyramid

45.

All tertiary consumers are scavengers

a)

true

b)

false

46.

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

47.

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

48.

Is a scavenger a primary consumer?

a)

Yes

b)

No

49.

decomposers are producers.

a)

true

b)

false

50.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
51.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
52.
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
53.
This diagram shows the amount of energy that moves from one feeding level to another in a food web.
a)
Energy Pyramid
b)
Food Web
c)
Ecosystem
d)
Food Chain
54.
If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?
a)
coyote
b)
insect
c)
lizard
d)
shrub
55.
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
56.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
57.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
58.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
59.
This diagram shows the amount of energy that moves from one feeding level to another in a food web.
a)
Energy Pyramid
b)
Food Web
c)
Ecosystem
d)
Food Chain
60.
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.
61.
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
62.
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
63.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
64.
A secondary consumer 
a)
eats primary consumers
b)
eats producers
c)
eats plants
65.
Which group are the producers? 
a)
1 and 2
b)
3 and 4
c)
4
d)
3
66.
Which trophic level is the Primary consumer? 
a)
1
b)
2
c)
3
d)
4
67.
Level 1 is called the _____________ trophic level. 
a)
Tertiary consumer
b)
Tertiary producer
c)
Primary consumer
d)
Primary producer
68.
Position that an organism occupies based on what it eats
a)
biomass
b)
autotroph
c)
trophic level
d)
carnivore
69.

How does the energy flow in an energy pyramids?

a)

up the pyramid

b)

down the pyramid

70.

Does the energy get lower or higher when it is transferred through each animal?

a)

It gets higher

b)

It gets lower

71.

What does the decomposer do?

a)

Eat dead animals

b)

Eat dead plants

c)

Return nutrients back to the

environment

d)

All of the above

72.

Can heterotrophs make their own food?

a)

Yes

b)

No

73.

True or false ~ All organisms make their own food.

a)

True

b)

False

74.

How are energy pyramids organized?

a)

Tropic Levels

b)

Tropical Levels

c)

Animal Levels

75.

Where do producers get their energy from?

a)

The sky

b)

The sun

c)

The ground

76.

What is a autotroph?

a)

Makes its own food

b)

Eat other animals

c)

Eats plants

77.

What is the process in which an animal makes it's own food?

a)

Ground food making

b)

Photosynthesis

c)

It's just called "Animals making their own food"

78.

Do consumers make their own food also?

a)

Yes

b)

No

79.

What are heterotrophs?

a)

An animal in which it makes it's own food

b)

An animal in which it eats other animals

80.

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)

81.

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

a)

Grass and hawks

b)

Grass and snakes

c)

Grass, snakes, and hawks

d)

Snakes and hawks

82.

If the RABBITS became diseased, which organisms would also be POSITIVELY affected?

a)

Grass

b)

Snakes

c)

Nobody (all hurt)

d)

Hawks

83.

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.

84.

What does equilibrium mean?

a)

Being in balance; staying the same for a long time.

b)

When a species has a very high population

c)

Changing gradually over time

d)

Nearly dieing off before recovering again.

85.

Which of the following is not true about predator-prey relationships?

a)

Predators lower the size of prey populations

b)

If a prey population grows, the predator population will grow too

c)

Predators hunt/eat prey.

d)

If a predator is removed, the prey population will die off.

86.

Why are the lower levels of the energy pyramid bigger than the top levels?

a)

The bottom is for larger animals.

b)

The bottom levels don't need as much energy.

c)

The top levels get energy (eat) the lower levels.

d)

The top levels have fewer predators for they are smaller.

87.

What is the effect of removing prey from a food chain?

a)

All predators above them will die or suffer.

b)

The prey's predator will die or suffer, but everybody else should be fine.

c)

The prey will always, eventually, come back

d)

The predators population will grow

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