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Worksheets

Energy and matter in ecosystems

Total questions: 183

Worksheet time: 4hrs 48mins

Name
Class
Date
1.

Which of the following organisms are producers? (There may be more than one.)

a)

grasses

b)

earthworm

c)

algae

d)

heron

e)

water lily

2.

Which of the following organisms are consumers? There may be more than one.

a)

grasses

b)

turtle

c)

earthworm

d)

water lily

e)

algae

3.

Which of the following organisms are decomposers? There may be more than one.

a)

grasses

b)

turtle

c)

earthworm

d)

water lily

e)

algae

4.

Which is the primary consumer in this group of organisms?

a)

The flower

b)

The snake

c)

The insect

5.

What is the difference between a food chain and a food web?

4 lines
6.

In what level of an energy pyramid is there the GREATEST amount of energy?

a)

Tertiary Level

b)

Secondary Consumer Level

c)

Primary Consumer Level

d)

Producer Level

7.

Organisms that make their own food

a)

Producer

b)

Consumer

c)

Decomposer

8.

Organisms that obtain energy by feeding on other organisms

a)

Producer

b)

Consumer

c)

Decomposer

9.

Organisms that break down wastes and dead organisms and return the raw materials to the environment

a)

Producer

b)

Consumer

c)

Decomposer

10.

Consumers that eat only plants

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

11.

Consumers that eat only animals

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

12.

Consumers that eat both plants and animals

a)

Omnivores

b)

Carnivores

c)

Herbivores

d)

Scavengers

13.

Consumers that feed on the bodies of dead organisms

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

14.

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

a)

chain

b)

web

c)

pyramid

d)

plate

15.

A food _______ consists of many overlapping food ________.

a)

web, chains

b)

chain, webs

c)

pyramid, webs

d)

web, pyramids

16.

As you work your way up the energy pyramid, what happens to the energy?

a)

It increases

b)

It decreases

c)

It stays the same

d)

Nothing

17.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

18.

In the food web above, what organism is missing from this food chain:

Grass --> Slug --> ________ --> Hawk

a)

Vole

b)

Frog

c)

Insect

d)

Thrush

19.

In the energy pyramid, what is the bottom level composed of?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

20.

In the energy pyramid, what comes after the producers?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

21.

The sun has been up for several hours, and it has been shining on these trees. What can the trees do because they are in sunlight? What does this mean for the number of energy storage molecules in the trees?

a)

give off carbon to the air. Giving off carbon allows them to make energy storage molecules.

b)

give off carbon to the air. Giving off carbon uses up energy storage molecules

c)

take in carbon from the air. The carbon is used to make energy storage molecules.

d)

take in carbon from the air. The carbon is used to break down energy storage molecules.

22.

These goats are eating grass on a sunny day. What is happening to the carbon in the air around the living things on the mountain? Is carbon moving into the air, moving out of the air, or both?

a)

Carbon is only moving into the air; it is not moving out of the air.

b)

Carbon is moving into the air and out of the air at the same time.

c)

Carbon is not moving into the air; it is only moving out of the air.

d)

With this information, there is no way to know for sure.

23.

Will has an aquarium with water, plants, and fish that eat the plants. It is sealed so no material can get in or out, and has glass sides that allow sunlight to come in. The aquarium can also be covered to prevent light from entering.

The amount of carbon in the aquarium’s water started out high. Now, the amount of carbon in the water is decreasing.

Is the aquarium now in sunlight or is it covered? What is happening to the number of energy storage molecules in the plants and fish as a result?

a)

The aquarium is now in sunlight, and there are more energy storage molecules in the plants and fish.

b)

The aquarium is now in sunlight, and there are fewer energy storage molecules in the plants and fish.

c)

The aquarium is now covered so no light can get in, and there are more energy storage molecules in the plants and fish.

d)

The aquarium is now covered so no light can get in, and there are fewer energy storage molecules in the plants and fish.

24.

Scientists are studying photosynthesis in a forest ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the forest carry out photosynthesis?

a)

all organisms in the forest

b)

animals and decomposers

c)

plants and decomposers

d)

plants

25.

A herd of deer lives in a forest where they eat the leaves of trees. The number of energy storage molecules in the trees and in the deer has increased. What has happened to the amount of carbon in the trees and in the deer?

            The amount of carbon in the trees and in the deer . . .

a)

has increased.

b)

has decreased.

c)

has not changed.

d)

is not related to the number of energy storage molecules.

26.

This sea grass has had the sun shining on it for most of the day. What can the sea grass do because it is in sunlight? What does this mean for the number of energy storage molecules in the sea grass?

The sea grass can . . .

a)

take in carbon from the air. The carbon is used to break down energy storage molecules.

b)

take in carbon from the air. The carbon is used to make energy storage molecules.

c)

give off carbon to the air. Giving off carbon allows the sea grass to make energy storage molecules.

d)

give off carbon to the air. Giving off carbon uses up energy storage molecules.

27.

This tortoise is eating cactus on a sunny day. Is carbon moving into the air, moving out of the air, or both?

a)

Carbon is not moving into the air; it is only moving out of the air.

b)

With this information, there is no way to know for sure.

c)

Carbon is only moving into the air; it is not moving out of the air.

d)

Carbon is moving into the air and out of the air at the same time.

28.

Lily has an aquarium with water, plants, and fish that eat the plants. The aquarium is sealed so no material can get in or out, and has glass sides that allow light to come in.

The aquarium can also be covered to prevent light from entering. The number of energy storage molecules in the plants and fish started out low, but that number has been increasing over time.

Has the aquarium been in sunlight or has it been covered during this time? What has happened to the carbon in the water?

a)

The aquarium has been covered so no light gets in, and there is less carbon in the water.

b)

The aquarium has been covered so no light gets in, and there is more carbon in the water.

c)

The aquarium has been in sunlight, and there is more carbon in the water.

d)

The aquarium has been in sunlight, and there is less carbon in the water.

29.

Scientists are studying cellular respiration in a jungle ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the jungle carry out cellular respiration?

a)

plants

b)

animals and decomposers

c)

all organisms in the jungle

d)

animals

30.

Giant pandas eat bamboo plants in the mountains of China. The number of energy storage molecules has decreased in both the bamboo and the pandas. What has happened to the amount of carbon in the bamboo and the pandas?

The amount of carbon in the bamboo and pandas . . .

a)

has not changed.

b)

is not related to the number of energy storage molecules.

c)

has increased.

d)

has decreased.

31.

Giant kelp are plantlike organisms that grow in clear ocean water. Over the last few hours some kelp has been taking in carbon from the water around it. Is the kelp in sunlight? What has happened to the number of energy storage molecules in the kelp?

The kelp . . .

a)

is in sunlight, and the number of energy storage molecules in the kelp has decreased.

b)

is in sunlight, and the number of energy storage molecules in the kelp has increased.

c)

is not in sunlight, and the number of energy storage molecules in the kelp has decreased.

d)

is not in sunlight, and the number of energy storage molecules in the kelp has increased.

32.

A rabbit is eating leafy plants on a sunny day. What is happening to the carbon in the plants and the rabbit?

a)

Carbon is only moving out of the living things; it is not moving into them.

b)

With this information, there is no way to know for sure.

c)

Carbon is moving into and out of the living things at the same time.

d)

Carbon is only moving into the living things; it is not moving out of them.

33.

A scientist set up an experimental ecosystem in a sealed room with no windows. The experimental ecosystem has plants and animals that eat those plants. The scientist can control whether the room is light or dark with a light switch outside the room.

The amount of carbon in the air of the ecosystem started out low. Then the amount of carbon in the air started to increase. Is the increase because the scientist switched the light on or because she switched the light off? What happened to the number of energy storage molecules in the living things?

The scientist . . .

a)

switched the light off, and the number of energy storage molecules in the living things decreased.

b)

switched the light off, and the number of energy storage molecules in the living things increased.

c)

switched the light on, and the number of energy storage molecules in the living things increased.

d)

switched the light on, and the number of energy storage molecules in the living things decreased.

34.

Scientists are studying photosynthesis in a desert ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the desert carry out photosynthesis?

a)

plants

b)

plants and decomposers

c)

all organisms in the desert

d)

animals and decomposers

35.

Scientists are studying cellular respiration in a river ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the river carry out cellular respiration?

a)

plants

b)

animals and decomposers

c)

all organisms in the river

d)

animals

36.

An ivy plant has been taking in carbon from the air for several hours. Is the ivy in sunlight? What has happened to the number of energy storage molecules in the ivy? The ivy . . .

a)

is in sunlight. The number of energy storage molecules in the ivy has decreased.

b)

is in sunlight. The number of energy storage molecules in the ivy has increased.

c)

is not in sunlight. The number of energy storage molecules in the ivy has decreased.

d)

is not in sunlight. The number of energy storage molecules in the ivy has increased.

37.

A group of giraffes feeds on leaves and grasses during the daytime. Right now, it's the middle of the night. The sun is not shining and the giraffes are not eating. Is carbon moving into the living things, moving out of the living things, or both?

a)

Carbon is moving into and out of the living things at the same time.

b)

Carbon is only moving into the living things; it is not moving out of them.

c)

Carbon is only moving out of the living things; it is not moving into them.

d)

With this information, there is no way to know for sure.

38.

Reza has a glass ball filled with water that contains tiny plants and shrimp that eat those plants. No material can get in or out, but light can get through the glass when it is placed in sunlight.

The number of energy storage molecules in the plants and shrimp started out high, but then the glass ball was moved, and the number of energy storage molecules decreased. Was the glass ball moved into the light or into the dark?

What happened to the amount of carbon in the water?

a)

The glass ball was moved into the dark, and there is less carbon in the water.

b)

The glass ball was moved into the dark, and there is more carbon in the water.

c)

The glass ball was moved into the light, and there is less carbon in the water.

d)

The glass ball was moved into the light, and there is more carbon in the water.

39.
Which of the following is an example of a biotic factor in an ecosystem?
a)
sunlight
b)
stream
c)
rock
d)
tree
40.
Most producers get energy from the Sun using the process of
a)
cellular respiration
b)
chemosynthesis
c)
photosynthesis
d)
consumption
41.
Decomposers are important to ecosystems because they
a)
return vital nutrients to the ecosystem
b)
capture energy from the Sun
c)
are producers
d)
can be omnivores
42.
What are the products of photosynthesis?
a)
Carbon dioxide and water
b)
Carbon dioxide and oxygen
c)
Glucose and oxygen
d)
Glucose and water
43.
A consumer gets energy by
a)
absorbing sunlight.
b)
breaking down dead organisms.
c)
soaking it up from the ground.
d)
feeding on other organisms.
44.
The cycling of matter is important because
a)
Matter can be created and destroyed
b)
Only a limited amount of matter is available so it has to be recycled
c)
Matter can only be found in a solution
d)
Bacteria use matter to convert organisms into solar energy
45.

Plants, animals, and decomposers (which consume dead things) are in a forest ecosystem. Scientists are studying photosynthesis in the forest. Which group or groups of organisms should they study?

a)

all organisms in the forest

b)

animals and decomposers

c)

plants and decomposers

d)

plants

46.

A jungle ecosystem has plants, animals, and decomposers (which consume dead things). Scientists are interested in studying cellular respiration in the jungle. Which group or groups of organisms should they study?

a)

plants

b)

animals and decomposers

c)

all organisms in the jungle

d)

animals

47.

Giant pandas live wild in the mountains in China, where they eat bamboo from its forests. The number of molecules that store energy has decreased in both the bamboo and the pandas. What has happened to the amount of carbon in the bamboo and the pandas?


The amount of carbon in the bamboo and pandas . . .

a)

has not changed.

b)

is not related to the number of molecules that store energy.

c)

has increased.

d)

has decreased.

48.

Climbing ivy grows on the sides of buildings. The ivy on one building has been taking in carbon from the air for several hours.


Is the ivy in sunlight? What has happened to the number of molecules that store energy in the ivy plants?


The ivy . . .

a)

is in sunlight. The number of molecules that store energy in the ivy has decreased.

b)

is in sunlight. The number of molecules that store energy in the ivy has increased.

c)

is not in sunlight. The number of molecules that store energy in the ivy has decreased.

d)

is not in sunlight. The number of molecules that store energy in the ivy has increased.

49.

Pea plants have been in the sunlight since early morning. What can the pea plants do because they are in sunlight? What does this mean for the number of energy storage molecules in the pea plants?The pea plants can…

a)

give off carbon to the air. Giving off carbon allows them to make energy storage molecules.

b)

give off carbon to the air. Giving off carbon uses up energy storage molecules.

c)

take in carbon from the air. The carbon is used to break down energy storage molecules.

d)

take in carbon from the air. The carbon is used to make energy storage molecules.

50.

Hippos spend most of their time in rivers, but they come out of the water to eat grass. It is dark out, and this hippo is not eating.


What is happening to the carbon in the air around the hippos and the grass nearby?

a)

Carbon is not moving into the air; it is only moving out of the air.

b)

With this information, there is no way to know for sure.

c)

Carbon is moving into the air and out of the air, at the same time.

d)

Carbon is only moving into the air; it is not moving out of the air.

51.

Parrotfish live in the ocean and eat plantlike organisms called algae. Sunlight is shining on the fish and the algae. Is carbon moving into the living things, moving out of the living things, or both?

a)

Carbon is moving into and out of the living things, at the same time.

b)

Carbon is only moving into the living things; it is not moving out of them.

c)

Carbon is only moving out of the living things; it is not moving into them.

d)

There is no way to know for sure, with this information.

52.
What are the products of cellular respiration?
a)
Energy (ATP), Water, and Carbon DIoxide.
b)
Water and Oxygen
c)
Oxygen and Carbon Dioxide
d)
Water and Energy (ATP)
53.
Where does cellular respiration take place in the cell?
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Vacuole
54.
What kind of things perform cellular respiration?
a)
All living cells
b)
plants only
c)
animals only
d)
yeast only
55.
Where in the cell does photosynthesis occur?
a)
mitochondria
b)
stomata
c)
xylem
d)
chloroplast
56.
All the living and nonliving things interacting in a particular area create an ________________.
a)
ecosystem
b)
biodome
c)
playground
d)
park
57.
Molecules are 
a)
2 atoms bound together 
b)
2 elements bound together 
c)
2 or more atoms mixed together
d)
2 or more atoms bound together 
58.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
59.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
60.

What are the smallest of all living things?

a)

Atoms

b)

Cells

c)

Molecules

d)

Viruses

61.

Which of the following is Not living?

a)

Bacteria

b)

Fungus

c)

Mushroom

d)

Virus

62.

Which organism can make its own food using the sun’s energy?

a)

Consumer

b)

Producer

c)

Decomposer

d)

Scavenger

63.

Which organism must eat other living things for energy?

a)

Consumer

b)

Producer

c)

Decomposer

d)

Plants

64.

Which organism breaks down dead plants and animals?

a)

Consumer

b)

Producer

c)

Decomposer

d)

Predator

65.

What two parts does a plant cell have that an animal cell does not?

a)

Cytoplasm and cell wall

b)

Nucleus and cell membrane

c)

Cell wall and chloroplasts

d)

Cell membrane and cell wall

66.

What cell part decides what gets in and out of the cell?

a)

Cell wall

b)

Nucleus

c)

Cytoplasm

d)

Cell membrane

67.

What cell part is the brain of the cell?

a)

Nucleus

b)

Chloroplasts

c)

Cell wall

d)

Cytoplasm

68.

The jelly-like substance that fills the cell.

a)

Nucleus

b)

Cell wall

c)

Cytoplasm

d)

Chloroplasts

69.

What cell part provides shape and structure for plant cells?

a)

Cell membrane

b)

Cell wall

c)

Cytoplasm

d)

Chloroplasts

70.

What cell part captures the sun’s energy and allow plants to make their own food?

a)

Cytoplasm

b)

Chloroplasts

c)

Nucleus

d)

Cell membrane

71.

What shows the flow of energy in an ecosystem?

a)

A flow chart

b)

A diagram

c)

A graph

d)

A food chain

72.

Where does the energy in a food chain come from?

a)

Sun

b)

Predators

c)

Prey

d)

Scavengers

73.

A consumer that eats ONLY other consumers (meat) is a ___________.

a)

Prey

b)

Herbivore

c)

Omnivore

d)

Carnivore

74.

A consumer that eats ONLY plants is a ___________________.

a)

Predator

b)

Omnivore

c)

Herbivore

d)

Carnivore

75.

A consumer that eats both plants and animals is a ________________.

a)

Omnivore

b)

Producer

c)

Carnivore

d)

Herbivore

76.

An animal that hunts and kills another animal for food is a __________.

a)

Prey

b)

Producer

c)

Predator

d)

Decomposer

77.

An animal that is hunted and killed by another animal for food is ________________.

a)

Predator

b)

Prey

c)

Scavenger

d)

Decomposer

78.

Several food chains interconnected together create a _____________.

a)

A long food chain.

b)

A food diagram

c)

Living things

d)

A food web

79.

Which is NOT a life process?

a)

Reproduce

b)

Photosynthesis

c)

Sensitivity

d)

Grow

80.
What energy role describes an organism that makes its own food, usually by using energy from the sun?
a)
consumer
b)
producer
c)
carnivore
d)
decomposer
81.
Hetetrotroph is another word (a synonym) for
a)
scavenger
b)
producer
c)
autotroph
d)
consumer
82.
All of the following are types of consumers EXCEPT for
a)
carnivore
b)
herbivore
c)
omnivore
d)
producer
83.
These organisms break down decaying biotic wastes and then return the materials to the ecosystem.
a)
decomposers
b)
scavengers
c)
carnivores
d)
producers
84.
An maple tree takes in energy from the sun and uses it to make food for itself. This energy role is
a)
herbivore
b)
omnivore
c)
producer
d)
consumer
85.
Vultures use their excellent sense of smell to find newly dead organisms to eat. This energy role is 
a)
scavenger
b)
decomposer
c)
carnivore
d)
herbivore
86.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

87.

In the food web above, what organism is missing from this food chain:

Grass --> Slug --> ________ --> Hawk

a)

Vole

b)

Frog

c)

Insect

d)

Thrush

88.

In the energy pyramid, what is the bottom level composed of?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

89.

In the energy pyramid, what comes after the producers?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

90.
Which organism gets its energy by eating sea otters?
a)
Sea urchins
b)
Sea Stars
c)
Sharks
d)
Large crabs
91.
Which organism in the food web is a producer?
a)
Mouse
b)
Owl
c)
Green Plant
d)
Snake
92.
Which organism in this food web is an herbivore?
a)
Frog
b)
Grasshopper
c)
Mouse
d)
Snake
93.
Which of the following diagrams would show all of the feeding connections within an ecosystem?
a)
Food web
b)
Food Chain
c)
Energy Web
d)
Energy Pyramid
94.
Which of the following diagrams would show how much energy is transferred between feeding levels in an ecosystem?
a)
Food web
b)
Food Chain
c)
Energy Web
d)
Energy Pyramid
95.

Position that an organism occupies based on what it eats

a)

Producer

b)

Trophic level

c)

Heterotroph

d)

Consumer

96.
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
97.
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
98.

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.

99.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
100.
The capturing of the suns energy is possible through a process called _____________
a)
Chemosynthesis
b)
Photosynthesis
101.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
102.
Where do producers get their energy from?
a)
the ground
b)
other animals
c)
decomposers
d)
the sun
103.
Which choice has a group of only consumers?
a)
grass, cows, birds
b)
tigers, turtles, seaweed
c)
owl, snake, bear
d)
castus, sun, mushroom
104.
Which choice has a group of only producers?
a)
red wolf, coyote, grey wolf
b)
sunflower, grass, pine tree
c)
mushrooms and worms
d)
seaweed, algae, mushrooms
105.
A consumer gets energy by
a)
absorbing sunlight.
b)
breaking down dead organisms.
c)
soaking it up from the ground.
d)
feeding on other organisms.
106.

A raccoon eats plants and animals. It is an example of a(n)

a)

omnivore

b)

carnivore

c)

herbivore

d)

decomposer

107.
__________ is an organism that only eats plants for energy.
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Terivore
108.
__________ is an organism that only eats meat for energy.
a)
Omnivore
b)
Borivore
c)
Herbivore
d)
Carnivore
109.
Elephants only eat leaves, fruit, nuts and grass. They are called __________.
a)
Omnivore
b)
Fortivore
c)
Herbivore
d)
Carnivore
110.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
111.

After the sun, where does a food chain start?

a)

with animals that eat plants

b)

with plants that eat other animals

c)

with plants that make their own food

112.

Where would a decomposer be in a food chain?

a)

at the beggining

b)

at the end

c)

between a producer and consumer

113.

All food webs include

a)

insects

b)

mushrooms

c)

producers

114.
Which is the correct sequence to show how organisms live in an environment?
a)
decomposer-->consumer-->producer
b)
consumer-->decomposer-->producer
c)
producer-->decomposer-->consumer
d)
producer-->consumer-->decomposer
115.

a series of chemical reactions that covert light energy, water, and carbon dioxide into the food- energy molecule glucose and gives off oxygen

a)

glycolysis

b)

photosynthesis

c)

food web

d)

condensation

116.

all living things and nonliving things in a given area

a)

food chain

b)

consumer

c)

ecosystem

d)

producer

117.

a series of chemical reactions that convert energy in food molecules into a useable form of energy called ATP

a)

cellular respiration

b)

detritivore

c)

food web

d)

precipitation

118.

a process by which glucose, a sugar, is broken down into smaller molecules

a)

photosynthesis

b)

ecosystem

c)

precipitation

d)

glycolysis

119.

an organism that uses an outside energy source, such as the Sun, and produces its own food

a)

consumer

b)

producer

c)

food web

d)

food chain

120.

an organism that cannot make its own food and gets energy by eating other organisms

a)

producer

b)

detritivore

c)

consumer

d)

energy pyramid

121.

an organism that consumes the bodies of dead organisms and wastes produced by living organisms

a)

ecosystem

b)

producer

c)

consumer

d)

detritivore

122.

a model that shows how energy flows in an ecosystem through feeding relationships

a)

food chain

b)

food web

c)

glycolysis

d)

nitrogen fixation

123.

a model of energy transfer that can show how the food chains in a community are interconnected

a)

food chain

b)

evaporation

c)

food web

d)

nitrogen fixation

124.

a model that shows the amount of energy available in each link of a food chain

a)

food web

b)

energy pyramid

c)

evaporation

d)

condensation

125.

the process of a liquid changing to a gas at the surface of the liquid

a)

evaporation

b)

condensation

c)

precipitation

d)

nitrogen fixation

126.

the process by which a gas changes to a liquid

a)

cellular respiration

b)

photosynthesis

c)

evaporation

d)

condensation

127.

water, in liquid or solid form, that falls from the atmosphere

a)

evaporation

b)

condensation

c)

precipitation

d)

nitrogen fixation

128.

the process that changes atmospheric nitrogen into nitrogen compounds taht are usable by living things

a)

precipitation

b)

nitrogen fixation

c)

evaporation

d)

condensation

129.

In the energy pyramid, who receives the most energy first?

a)

Primary Consumers

b)

Decomposers

c)

Secondary Consumers

d)

Producers

130.

A primary Consumer is also called a:

a)

Carnivore

b)

Scavenger

c)

Herbivore

d)

Producer

131.

Producers get energy by capturing what from the sun?

a)

Chemical Energy

b)

Big Energy

c)

Light energy

d)

No Energy

132.

Matter is anything that has _____and takes up space.

a)

energy

b)

mass

c)

chemicals

d)

matter

133.

Check all the primary consumers listed!

a)

Snake

b)

Rabbit

c)

Zebra

d)

Bear

134.

Energy is the ability to do (a)   and enables organisms to use matter in life processes.

135.

What are the two ways different organisms can get energy? check the two boxes that apply.

a)

Ground

b)

Sun

c)

Ocean

d)

Other Organisms

136.

Consumers take in both energy and matter at the same time when they eat.

a)

True

b)

False

137.

Energy and Matter cannot leave ecosystems.

a)

True

b)

False

138.

The law of conservation of energy and mass, says that they both cant be created or (a)  

139.

Although energy and matter can't be created or destroyed, they can change forms.

a)

True

b)

False

140.

What is this called?

a)

Energy Post

b)

Energy Triangle

c)

Energy Pyramid

d)

Pyramid Triangle

141.

The shape of an energy pyramid shows that there is more energy and more organisms at each level the higher it goes.

a)

True

b)

False

142.

This picture shows us that matter _________through an ecosystem.

a)

goes

b)

cycles

c)

leaves

d)

falls

143.

What do you think your final exam project will be?

a)

A 5 Page Report

b)

A 30 Page Question Sheet

c)

A Biome Box

d)

An Investigation Letter

144.

The sun has been up for several hours, and it has been shining on these trees. What can the trees do because they are in the sunlight? What does this mean for the number of energy storage molecules in the trees? The trees can...

a)

give off carbon to the air. Giving off carbon allows them to make energy storage molecules.

b)

give off carbon to the air. Giving off carbon uses up energy storage molecules.

c)

take in carbon from the air. The carbon is used to make energy storage molecules.

145.

These goats are eating grass on a sunny day. What is happening to the carbon in the air around the living things on the mountain? Is carbon moving into the air, moving out of the air, or both?

a)

Carbon is moving into the air and out of the air at the same time.

b)

Carbon is not moving into the air; it is only moving out of the air.

c)

With this information, there is no way to know for sure.

146.

Will has an aquarium with water, plants, and fish that eat the plants. It is sealed so no material can get in or out, and has glass sides that allow sunlight to come in. The aquarium can also be covered to prevent light from entering. The amount of carbon in the aquarium's water started out high. Now, the amount of carbon in the water is decreasing. Is the aquarium now in sunlight or is it covered? What is happening to the number of energy storage molecules in the plants and fish as a result?

a)

The aquarium is now in sunlight, and there are more energy storage molecules in the plants and fish.

b)

The aquarium is now covered so no light can get in, and there are more energy storage molecules in the plants and fish.

c)

The aquarium is now covered so no light can get in, and there are fewer energy storage molecules in the plants and fish.

147.

Scientists are studying photosynthesis in a forest ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the forest carry out photosynthesis?

a)

all organisms in the forest

b)

animals and decomposers

c)

plants

148.

A herd of deer lives in a forest where they eat the leaves of trees. The number of energy storage molecules in the trees and in the deer has increased. What has happened to the amount of carbon in the trees and in the deer? The amount of carbon in the trees and in the deer . . .

a)

has increased

b)

has not changed

c)

is not related to the number of energy storage molecules.

149.

This sea grass has had the sun shining on it for most of the day. What can the sea grass do because it is in sunlight? What does this mean for the number of energy storage molecules in the sea grass? The sea grass can...

a)

take in carbon from the air. The carbon is used to make energy storage molecules.

b)

give off carbon to the air. Giving off carbon allows the sea grass to make energy storage molecules.

c)

give off carbon to the air. Giving off carbon uses up energy storage molecules.

150.

This tortoise is eating cactus on a sunny day. Is carbon moving into the air, moving out of the air, or both?

a)

With this information, there is no way to know for sure.

b)

Carbon is only moving into the air; it is not moving out of the air.

c)

Carbon is moving into the air and out of the air at the same time.

151.

Lily has an aquarium with water, plants, and fish that eat the plants. The aquarium is sealed so no material can get in or out, and has glass sides that allow light to come in. The aquarium can also be covered to prevent light from entering. The number of energy storage molecules in the plants and fish started out low, but that number has been increasing over time. Has the aquarium been in sunlight or has it been covered during this time? What has happened to the carbon in the water?

a)

The aquarium has been covered so no light gets in, and there is less carbon in the water.

b)

The aquarium has been covered so no light gets in, and there is less carbon in the water.

c)

The aquarium has been in sunlight, and there is less carbon in the water.

152.

Scientists are studying cellular respiration in a jungle ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the jungle carry out cellular respiration?

a)

animals and decomposers

b)

all organisms in the jungle

c)

animals

153.

Giant pandas eat bamboo plants in the mountains of China. The number of energy storage molecules has decreased in both the bamboo and the pandas. What has happened to the amount of carbon in the bamboo and the pandas? The amount of carbon in the bamboo and pandas .

a)

has not changed

b)

is not related to the number of energy storage molecules

c)

has decreased.

154.

Giant kelp are plantlike organisms that grow in clear ocean water. Over the last few hours some kelp has been taking in carbon from the water around it. Is the kelp in sunlight? What has happened to the number of energy storage molecules in the kelp? The kelp...

a)

is in sunlight, and the number of energy storage molecules in the kelp has increased.

b)

is not in sunlight, and the number of energy storage molecules in the kelp has decreased.

c)

is not in sunlight, and the number of energy storage molecules in the kelp has increased.

155.

A rabbit is eating leafy plants on a sunny day. What is happening to the carbon in the plants and in the rabbit?

a)

Carbon is only moving out of the living things; it is not moving into them.

b)

With this information, there is no way to know for sure.

c)

Carbon is moving into and out of the living things at the same time.

156.

A scientist set up an experimental ecosystem in a sealed room with no windows. The experimental ecosystem has plants, and animals that eat those plants. The scientist can control whether the room is light or dark with a light switch outside the room. The amount of carbon in the air of the ecosystem started out low. Then the amount of carbon in the air started to increase. Is the increase because the scientist switched the light on or because she switched the light off? What happened to the number of energy storage molecules in the living things? The scientist...

a)

switched the light off, and the number of energy storage molecules in the living things decreased.

b)

switched the light on, and the number of energy storage molecules in the living things increased.

c)

switched the light on, and the number of energy storage molecules in the living things decreased.

157.

Scientists are studying photosynthesis in a desert ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the desert carry out photosynthesis?

a)

plants

b)

all organisms in the desert

c)

animals and decomposers

158.

Scientists are studying cellular respiration in a river ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the river carry out cellular respiration?

a)

animals and decomposers

b)

all organisms in the river

c)

animals

159.

An ivy plant has been taking in carbon from the air for several hours. Is the ivy in sunlight? What has happened to the number of energy storage molecules in the ivy? The ivy . . .

a)

is in sunlight. The number of energy storage molecules in the ivy has decreased.

b)

is in sunlight. The number of energy storage molecules in the ivy has increased.

c)

is not in sunlight. The number of energy storage molecules in the ivy has decreased.

160.

A group of giraffes feeds on leaves and grasses during the daytime. Right now, it's the middle of the night. The sun is not shining and the giraffes are not eating. Is carbon moving into the living things, moving out of the living things, or both?

a)

Carbon is moving into and out of the living things at the same time.

b)

Carbon is only moving out of the living things; it is not moving into them.

c)

With this information, there is no way to know for sure.

161.

Reza has a glass ball filled with water that contains tiny plants and shrimp that eat those plants. No material can get in or out, but light can get through the glass when it is placed in sunlight. The number of energy storage molecules in the plants and shrimp started out high, but then the glass ball was moved, and the number of energy storage molecules decreased. Was the glass ball moved into the light or into the dark? What happened to the amount of carbon in the water?

a)

The glass ball was moved into the dark, and there is more carbon in the water.

b)

The glass ball was moved into the light, and there is less carbon in the water.

c)

The glass ball was moved into the light, and there is more carbon in the water.

162.

This space station has plants growing inside it, and astronauts who eat the fruits and vegetables from those plants. Because it is in space, the station is sealed so no material can get in or out. The space station is in Earth’s shadow, so no light is getting into it. The sensors in the space station show that carbon dioxide in the air is increasing. What is happening to the energy storage molecules in the plants and humans in the space station? Explain your answer as completely as possible.

a)

a decrease in energy storage molecules

b)

a increase in energy storage molecules

163.

A scientist is studying an aquarium ecosystem that contains water, plants, and fish that eat those plants. The aquarium has glass walls so light can get in, but it is sealed so no material can move into or out of the tank. When the scientist turned the aquarium's light on, carbon in the water started decreasing. How is carbon moving and what is happening to the amount of carbon in the living things inside the aquarium? Explain your thinking as completely as possible.

a)

the plants are performing photosynthesis.

b)

the plants are not performing photosynthesis.

164.
Which of the following is an example of a food producer?
a)
Human
b)
Grizzly Bear
c)
Orca
d)
Oak Tree
165.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
166.
Which are decomposers ?
a)
humans
b)
trees
c)
red wolves
d)
worms
167.
Which is NOT a consumer?
a)
mushroom
b)
bird
c)
carnivore 
d)
omnivore 
168.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
169.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
170.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
171.
What role do decomposers play in an ecosystem?
a)
Produce food
b)
recycle matter
c)
provide oxygen
d)
supply water
172.
What is an ecosystem?
a)
all living and nonliving things that interact in an area
b)
all of the physical characteristics of an area
c)
all the living things that interact in an area
d)
all of the nonliving things that interact in an area
173.
A consumer gets energy by
a)
absorbing sunlight.
b)
breaking down dead organisms.
c)
soaking it up from the ground.
d)
feeding on other organisms.
174.
What does a Secondary Consumer eat?
a)
Tertiary Consumers
b)
Primary Consumers
c)
Producers
d)
Secondary Consumers
175.
In this Food Web Pyramid Which type of consumer gets only 10% of the energy stored in plants?
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Secondary Consumer
176.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
177.

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

178.
All of the following are types of consumers EXCEPT for
a)
carnivore
b)
herbivore
c)
omnivore
d)
producer
179.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

180.

In the energy pyramid, what comes after the producers?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

181.

In the food web above, what organism is missing from this food chain:

Grass --> Slug --> ________ --> Hawk

a)

Vole

b)

Frog

c)

Insect

d)

Thrush

182.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
183.
The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?
a)
X : Respiration
Y : Predation
b)
X : Adaptation
Y : Decomposition
c)
X : Fermentation
Y : Nitrogen Fixation
d)
X : Decomposition
Y : Respiration

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