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Ecosystems Review-Unit 3

Total questions: 152

Worksheet time: 3hrs 19mins

Name
Class
Date
1.

What is the role of water, soil, susnshine, and rocks in an ecosystem?

a)

They are all biotic factors.

b)

They are all eaten by animals in the ecosystem.

c)

They are all abiotic factors.

d)

They are all producers of their own food.

2.

Choose all the biotic factors.

a)

cacti

b)

sand

c)

snakes

d)

coyotes

3.

Choose all the abiotic factors.

a)

sand

b)

rocks

c)

camels

d)

air

4.

Which of the following is an example of an ecosystem?

a)

all the living and nonliving things in a pond

b)

all the frogs in a pond

c)

all the living things living in a pond

5.

Some organisms use dead things as food matter

a)

True

b)

False

6.

All the energy that organisms get from food matter originally comes from sunlight

a)

True

b)

False

7.

Soil never changes. It always stays the same

a)

True

b)

False

8.
What 4 things does an organism need to survive?
a)
Food, water, shelter, space
b)
Food, friends, shelter, space
c)
Water, shelter, prey, predators
d)
Shelter, food, water, humans
9.
The parts of the food chain in the picture are out of order.  Which picture should be last in the food chain shown?
a)
snake
b)
sun
c)
carrot
d)
rabbit
10.
What could happen if all of the rabbits in the food chain died? (Remember the picture is out of order)
a)
The snakes would have to find a different source of food. They could die.
b)
The carrots could not eat.
c)
Nothing
11.

Use the food chain below to answer the following question:


Forest food chain


trees → bugs→ birds → fox


If the trees are destroyed in a forest fire, what could happen to the rest of the food chain?

a)

there will be no change in the food chain

b)

the population of the primary producers will increase

c)

the population of the consumers will increase

d)

the population of the consumers will decrease

12.

Decomposers such as fungi, insects, and molds get their energy from __________.

a)

Water

b)

Decaying plants and animals

c)

Fertilizer

d)

All of the above

13.

One year, there are more new snakes hatched in the forest than in other years. How would this affect the other organisms that year?

a)

The plants would have fewer nutrients.

b)

There would be an increase in the number of birds

c)

The tigers would have more to eat.

d)

There would be fewer mushrooms

14.

The student draws a diagram to show the roles of the producers, consumers, and decomposers in the rainforest. How is the role of the decomposers different from the role of the producers?

a)

The decomposers eat the plants to get energy.

b)

The decomposers make food using energy from the sun

c)

The decomposers provide nutrients for the atmosphere.

d)

They decomposers break down dead organisms.

15.

A student is developing a model of an ecosystem. Why does she want to include the sun in her model?

a)

The sun is needed to make the seasons on Earth.

b)

The sun keeps everything warm on Earth.

c)

The sun allows plants and animals to be part of the same ecosystem.

d)

The sun provides the energy for the production of food in the ecosystem.

16.

Which of the following statements about producers is CORRECT?

a)

they make their own food

b)

they eat other organisms

c)

they make things other than food

d)

they obtain food by breaking down the remains of other living things

17.

Which of the following statements about consumers is CORRECT?

a)

they make their own food

b)

they eat other organisms

c)

they make things other than food

d)

they obtain food by breaking down the remains of other living things

18.

All animals in an ecosystem depend on __________ for energy.

a)

Decomposers

b)

Producers

c)

Consumers

d)

Herbivores

19.

A student wants to build a model of a grasslands food chain that includes a frog, grasshopper, snake, and grass. Which organism belongs in this food chain immediately after the Sun?

a)

Grass

b)

Frog

c)

Snake

d)

Mosquito

20.

Use the food chain below to answer the following question:


Forest food chain


trees → bugs→ birds → fox


If the trees are destroyed in a forest fire, what could happen to the rest of the food chain?

a)

there will be no change in the food chain

b)

the population of the primary producers will increase

c)

the population of the consumers will increase

d)

the population of the consumers will decrease

21.

What is missing in this simple food chain?

a)

Consumer

b)

Producer

c)

Decomposer

d)

Herbivore

22.

2. the sun in an ecosystem

a)

what are the main categories in an ecosystem

b)

what are the self sustaining producers

c)

what is a common threat to every ecosystem

d)

what is the first step in most ecosystems

23.

ecosystem

a)

what is organic dead products and dead material

b)

what do we call the interaction of animals plants and organisms in a forest

c)

what is a common threat to every ecosystem

d)

what do animals plants and other organisms have to do in a forest

24.

8. food for decomposers to feed

a)

what is a common threat to every ecosystem

b)

what are the main categories in an ecosystem

c)

what is organic dead products and dead material

d)

what is the first step in most ecosystems

25.

What type of living thing can make its own food?

a)

consumer

b)

producer

c)

decomposer

d)

carnivore

26.

Movement of energy in a sequence is called a

a)

ecosystem

b)

niche

c)

food chain

d)

habitat

27.

The Living and nonliving things that interact in an area

a)

ecosystem

b)

habitat

c)

niche

d)

population

28.

An animal that eats plants or other animals

a)

consumer

b)

producer

c)

decomposer

d)

food chain

29.

A living thing that feeds on the remains of plants and animals

a)

producer

b)

consumer

c)

decomposer

d)

niche

30.

During a drought, the available resources in a habitat wil

a)

increase

b)

stay the same

c)

decrease

31.

If a predator moves into an area with a large population of its prey, what will happen to the population of the prey?

a)

decrease

b)

increase

c)

increase, then decrease

d)

decrease, then increase

32.

When a vine grows up a tree and blocks the sunlight causing the tree to die, what is this an example of?

a)

climate changing an environment

b)

trees meeting a basic need

c)

a biotic factor changing an environment

d)

pollution harming an environment

33.

Deer are herbivores that feed on the small leaves of plants. What might happen if more deer move into an area?

a)

The deer population will not change.

b)

Small plants can become scarce, causing a decrease in the deep population.

c)

Deer will learn to eat mice and rabbits.

d)

Other plants will grow better.

34.

A population of mice lives in a barn community. A cat population has just joined the community. What will happen?

a)

mouse and cat populations both go up

b)

mouse and cat populations both go down

c)

mouse population goes down as cat population goes up

d)

mouse population goes up as cat population goes down

35.

A mushroom is growing on the stump of a dead tree. What could you infer about the role of the mushroom?

a)

The mushroom is a producer, using the sun's energy to make its own food.

b)

The mushroom is a decomposer, causing the stump to decay slower.

c)

The mushroom is a herbivore, getting nutrients from the stump.

d)

The mushroom is a decomposer, causing the stump to decay faster.

36.

The diagram above shows a simple food web. What do you think would happen if the number of meat-eating fish decreased? Check all that apply.

a)

The number of seals and sea otters will increase.

b)

The organisms eaten by the meat-eating fish, plant-eating fish and shrimp and crab larvae, would increase.

c)

The organisms eaten by the meat-eating fish, plant-eating fish and shrimp and crab larvae, would decrease.

d)

The number of seals and sea otters will decrease.

37.

Suppose many fish in the food web above died from disease. What would happen to the seal and water plant populations?

a)

The number of seals and water plants would both increase.

b)

The number of seals and water plants would both decrease.

c)

The number of seals would increase and the water plants would decrease.

d)

The number of seals would decrease and water plants would increase.

38.

A ____________ is an illustration that shows how energy is passed from one living thing to another.

a)

herbivore

b)

food chain

c)

food web

d)

carnivore

39.

A ___________ is an illustration that shows how animals are connected in their search for food within an ecosystem.

a)

decomposer

b)

food chain

c)

food web

d)

herbivore

40.

Green plants can make food in their leaves. A living thing that can make food with energy from the sun is called a _____________________.

a)

consumer

b)

producer

c)

omivore

d)

decomposer

41.

Animals get their energy by eating plants and animals. A living thing that needs to eat to obtain energy is called a ______________________.

a)

omnivore

b)

consumer

c)

decomposer

d)

carnivore

42.

Mushrooms can not make their own food and the do not eat food. Instead, they get their energy by breaking down and absorbing dead organic matter. These types of living things are called _______________________.

a)

omnivore

b)

carnivore

c)

consumers

d)

decomposers

43.

Name the living thing in the food web that is a producer.

(a)  

44.

What living things does the wild cat consume?

a)

goat,rabbit,rat

b)

rabbit, rat

c)

owl, lion, fox

45.

What living things does the hawk eat

(a)  

46.

What is eaten by the goat, rabbit, and mouse?

(a)  

47.

Which item in this food chain is a producer ( makes its own food)?

a)

leaf

b)

caterpillar

c)

blue bird

d)

hawk

48.

Which of the following is a nonliving part of an ecosystem?

a)

grass

b)

water

c)

birds

d)

bacteria

49.

Which of the following is a decomposer?

a)

bacteria

b)

fungi

c)

worms

d)

all of them

50.

Choose all of the biomes.

a)

Andalusia

b)

rainforest

c)

desert

d)

grasslands

51.

The living and nonliving things in an environment or area.

a)

ecosystem

b)

food web

c)

abiotic

52.
Which of these is NOT an example of an ecosystem?
a)
Rainforest
b)
A city
c)
Desert
d)
Deep ocean
53.
Which is a non-living part of an ecosystem?
a)
Sunlight
b)
Air
c)
Water
d)
All of these
54.
Which is an example of an abiotic factor in a desert?
a)
Sun
b)
cactus
c)
scorpion
d)
snake
55.
Which is an example of a biotic factor in a desert?
a)
Sun
b)
soil
c)
snake
d)
minerals
56.
What is the climate in an ecosystem?
a)
How hot or cold an ecosystem is
b)
The average weather over many years which includes temperature and rainfall
c)
How wet or dry an ecosystem is
d)
The average living organisms in an ecosystem
57.

Invertebrate are animals

a)

Without a backbone

b)

Have a spine

c)

Has a backbone made of cartilage

d)

That look like plants

58.
Mammals, fish, reptiles, amphibians, and birds are all __________________.
a)
invertebrates
b)
vertebrates
c)
good pets
59.

Click on all the abiotic factors

a)

Rabbit

b)

soil

c)

water

d)

sunlight

60.

Click on all the biotic factors

a)

rabbit

b)

tree

c)

soil

d)

water

61.

A process through which plants make their own food using sunlight, water, and carbon dioxide.

a)

photosynthesis

b)

carnivores

c)

herbivores

d)

omnivores

62.

Energy passing from one living thing to another.

a)

food chain

b)

carnivores

c)

omnivores

d)

photosynthesis

63.

Animals such as earthworms and ants that help to break down pieces of dead matter.

a)

herbivores

b)

photosynthesis

c)

decomposers

d)

food chain

64.

Plants need all of the following except ________________to make their own food.

a)

Oxygen

b)

Carbon dioxide

c)

Water

d)

Sunlight

65.

How do decomposers such as earthworms and ants help the Earth?

a)

They break down decaying matter and return nutrients back to the soil.

b)

They don’t need any sunlight and provide us with oxygen

c)

They help animals find shelter in the wild.

d)

They add water to the soil in very dry climates.

66.

Everything on Earth can be put into two groups: biotic and abiotic. Which list below gives examples of biotic things?

a)

Water, sunlight, computers, and books

b)

Rocks, soil, and oxygen

c)

Trees, animals, flowers, and humans

d)

Plants, sunlight, animals, and rocks

67.

Organisms are living things that carry out basic life functions such as:

a)

Get energy from the sun

b)

Grow and develop

c)

Reproduce

d)

All of the above

68.

Terrestrial biomes are…

a)

Non-living things such as a book or a pencil

b)

Land-based communities such as a desert

c)

Water-based communities such as a marine region

d)

A place where no life forms exist such as the moon

69.

What things found in an environment make up an ecosystem?

a)

People

b)

Living things such as plants and animals

c)

Non-living things such as water, Sun, and soil

d)

All of the above

70.
Which biome is characterized by low temperatures and low amounts of rainfall?
a)
tundra
b)
desert
c)
temperate deciduous forest
d)
tropical rain forest
71.
Which biome receives between 0 to 25 centimeters of rain per year, has a temperature range of 0 to 50 degrees Celsius, has poor soil, and is home to lizards, scorpions, and snakes?
a)
desert
b)
mountain
c)
taiga
d)
tundra
72.
Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?
a)
taiga
b)
tundra
c)
deciduous forest
d)
grassland
73.
This biome is found around the equator and is home to a large amount of biodiversity.
a)
Deserts
b)
Tropical Rain Forests
c)
Savannas
d)
Chaparral 
74.
Which biome has deciduous trees (which lose their leaves)?
a)
Temperate Forest
b)
Rainforest
c)
Grasslands
d)
Taiga
75.
Which biome has wide-open fields of grass?
a)
Taiga
b)
Grasslands
c)
Temperate Forest
d)
Rainforest
76.
Which biome has 4 seasons?
a)
Taiga
b)
Tundra
c)
Grasslands
d)
Temperate Forest
77.
Which biome is home to lions, zebras, wildebeests, giraffes, and elephants?
a)
Grasslands
b)
Tundra
c)
Rainforest
d)
Temperate Forest
78.
Weather pattern in a region including precipitation (rain, snow, sleet, hail) and temperature
a)
Adaptation
b)
Biome
c)
Ecosystem
d)
Climate
79.
The kind of wetland formed where saltwater and fresh water meet is called
a)
brujeria
b)
estuary
c)
swamp
d)
marsh
80.
What aquatic biome is characterized by flowing fresh water?
a)
Lakes/Ponds
b)
Mangroves Swamps
c)
Rivers/Streams
d)
Coral Reefs
81.
Which of the following is the best definition for estuary?
a)
Narrow band of coastline that exists between high and low tide.
b)
Areas along the coast where fresh water from rivers mixes with salt water from the ocean.
c)
Flowing fresh water containing rapids.
d)
Freshwater aquatic areas that are saturated by water for at least part of the year.
82.
Which of the following is considered a wetland?
a)
Swamps
b)
Marshes
c)
Bogs
d)
All of the above.
83.
Which biome is pictured below?
a)
ocean
b)
freshwater
c)
coral reef 
d)
wetland
84.
Which watery biome has the lowest concentration of salt?
a)
freshwater
b)
ocean
c)
coral reef
d)
wetland
85.
Which is NOT a freshwater ecosystem?
a)
a river
b)
a lake 
c)
an estuary
d)
a stream
86.

What is the defining difference between the marine, freshwater, and estuary biomes?

a)

Salinity (dissolved salt)

b)

Sunlight

c)

Oxygen

d)

Amount of Water

87.

As rivers flow from their headwaters in the mountains down to flatter areas they become

a)

more narrow, faster, warmer

b)

faster, more narrow, colder

c)

wider, warmer, slower

d)

wider, colder, faster

88.
Which biome is pictured below?
a)
freshwater
b)
wetland
c)
coral reef
d)
ocean
89.
Estuary water should have 
a)
less salt than the ocean
b)
more salt than the ocean
c)
no salt
90.

Which aquatic biome contains the most water that humans drink.

a)

estuary

b)

wetlands

c)

ocean

d)

freshwater

91.

Freshwater Biomes include (check all)

a)

Ponds

b)

Lakes

c)

Streams

d)

Oceans

92.

What is the difference between ponds and streams?

a)

One is dirty and one is clean.

b)

Pond is running water, stream is still.

c)

Pond is still water, stream is running water.

93.

This is where freshwater and salt water meet.

a)

coral reef

b)

river

c)

estuary

d)

pond

94.

This is home to fish, worms, insects, birds, and shellfish.

a)

pond

b)

estuary

c)

coral reef

95.

This makes up 97% of our planet.

a)

ocean

b)

pond

c)

lake

d)

coral reef

96.

This has a limited amount of species.

a)

ponds and lakes

b)

oceans

97.

This is the largest biome.

a)

Grasslands

b)

Tundra

c)

Desert

d)

Aquatic

98.

What would happen if there was a drought in the grassland?

a)

no change

b)

plant and animal populations would increase

c)

plant and animal populations would decrease

d)

grasses would increase

99.

From looking at owl pellets (regurgitated mass of undigested material), what could you tell?

a)

type of ecosystem

b)

number of owls

c)

role of the owl in the food chain

d)

life cycle of an owl

100.

What role do termites play in an ecosystem?

a)

producers

b)

decomposers

c)

consumers

d)

omnivores

101.

An ecosystem with tall trees.

a)

forest

b)

grassland

c)

both forest and grassland

102.

A terrestrial ecosystem.

a)

forest

b)

grassland

c)

both forest and grassland

103.

Prairie dogs and bison live here.

a)

forest

b)

grassland

c)

both forest and grassland

104.

Is covered with tall grass.

a)

forest

b)

grassland

c)

both forest and grassland

105.

Has varying temperatures depending on the location.

a)

forest

b)

grassland

c)

both forest and grassland

106.

An ecologist observing a deciduous forest ecosystem would most likely write which journal entry?

a)

“This morning I awoke and found it raining again! Thankfully, it was a quick storm and for most of the morning I was able to observe a population of chimpanzees that lives close to the camp. By lunch, I was hot, sweaty, and ready for a shower.”

b)

“When I climbed out of the tent this morning, the first thing I noticed was the large number of birds hunting for breakfast in the water. After breakfast, I took a quick walk to take pictures of the ocean from the shoreline.”

c)

"From the jeep, I am able to observe bison grazing on vegetation. Another mile down the road, I see a group of prairie dogs peeking out from their burrows. Plants include mostly grasses and a few small shrubs.”

d)

“From my observation tower I can see trees that are full of orange, red, and yellow leaves. I also observe deer searching for food and several flocks of birds that are heading south for winter.”

107.

What is climate?

a)

average of all weather conditions through all seasons over a period of time.

b)

the climate of a very small area

c)

the land environment of where animals and plants live

d)

the amount of precipitation that falls from the sky

108.

Which is a difference between a tropical rainforest and a deciduous forest?

a)

A tropical rainforest is smaller in size than a deciduous forest.

b)

A tropical rainforest receives more sunlight than a deciduous forest.

c)

A tropical rainforest receives a greater annual precipitation than a deciduous forest.

d)

A tropical rainforest has a greater number of rivers and lakes than a deciduous forest.

109.

Which two ecosystems are terrestrial?

a)

ponds and lakes

b)

forest and estuaries

c)

oceans and grasslands

d)

forest and grasslands

110.

What terrestrial ecosystem is near the equator?

a)

Rain Forest

b)

Tundra

c)

Taiga

d)

Ocean

111.

Taking into account the image, People can explain that it is an ecosystem because presents

a)

Variety of biodiversity such animals, plants and organisms.

b)

No-living environments like weather, sun, water and climate.

c)

Wonderful and touristic places.

d)

Communities of living and no- living things that work together.

112.

The correct picture that represents aquatic ecosystem is 

a)
b)
c)
d)
113.

Peter is an artistic person, the last week he visited Amazon Rainforest. Peter found that Amazon is an example of biodiversity because it has

a)

diversity of dances.

b)

living and no-living things.

c)

a terrestrial ecosystem

d)

variety of life.

114.

The image represents an example of aquatic ecosystem because it has

a)

has communities of living and non- living things under water

b)

has a lot of aqutic animals and plants.

c)

a lot of water.

d)

has communities of living and non- living things on the land.

115.

A terrestrial ecosystem is

a)

communities of living and non-living things on the land.

b)

variety of life.

c)

different types of plants, animals and flowers.

d)

communities of living and non-living things under water.

116.

Which ecosystem gets lots of rain and warm weather?

a)

Deciduous forest

b)

tropical rainforest

c)

ocean

d)

grasslands

117.

Ecosystem that includes: bison, tall grasses, prairie dog

a)

african grasslands

b)

american grasslands

c)

desert

d)

deciduous forest

118.

Ecosystem that includes: tall grasses, elephants, zebras

a)

African grasslands

b)

American grasslands

c)

desert

d)

tropical rainforest

119.

Which ecosystem gets less rainfall than the others

a)

Grasslands

b)

decidous forest

c)

tropical rainforest

120.

Which is an abiotic factor?

a)

plant

b)

animal

c)

flower

d)

water

121.

Which is a biotic factor?

a)

bacteria

b)

rock

c)

sun

d)

water

122.

Which ecosystem is terrestrial?

a)

ocean

b)

pond

c)

lake

d)

forest

123.

Which animal belongs in the deciduous forest?

a)

fox

b)

tiger

c)

monkey

d)

parrot

124.

Which ecosystem has adequate rainfall?

a)

desert

b)

grasslands

c)

tropical rainforest

d)

deciduous forest

125.

Which ecosystem gets lots of rain and warm weather?

a)

Deciduous forest

b)

tropical rainforest

c)

ocean

d)

grasslands

126.

What animal would live in this ecosystem?

a)

toucan

b)

zebra

c)

scorpion

d)

polar bear

127.

Where would this animal live?

a)

rainforest

b)

tundra

c)

forest

d)

desert

128.
The tropical rain forest & tropical savanna biomes are similar in ___________, but ________________________________.
a)
temperature / the savannah doesn't receive enough rainfall to be a forest
b)
precipitation / the rain forest is hotter
c)
precipitation / the savanna is cooler
d)
temperature / the rain forest doesn't receive enough sunlight to be a savanna
129.
The biome pictured is
a)
tropical savanna
b)
tropical rain forest
c)
temperate rain forest
d)
temperate deciduous forest
130.

The biome pictured is

a)

temperate prairie grassland

b)

temperate deciduous forest

c)

desert

d)

tundra

131.
The biome pictured is
a)
tropical rain forest
b)
temperate deciduous forest
c)
temperate rain forest
d)
tropical seasonal forest
132.

Temperate grasslands include:

a)

the swamps of southern Florida

b)

the prairies of North America

c)

the icy arctic tundra

133.

Temperate prairie grasslands have

a)

hot summers and cold winters

b)

no seasons

c)

hot winters and cold summers

134.

The temperature in the deciduous forest biome is

a)

has cool seasons and warm seasons

b)

cold

c)

always warm

d)

snowy

135.

The kinds of plants you find in the Deciduous Forest are

a)

grasses (few or no trees)

b)

few plants

c)

deciduous trees and herbs

d)

mosses and lichens

136.

Most Rain Forest are found near

a)

really cold places

b)

equator

c)

Europe

d)

Northern North America

137.

The Rain Forest receives

a)

little rain yearly

b)

a lot of rain during half of the year

c)

lots of rain all year long

d)

just enough rain

138.

The temperature in the rain forest

a)

does not change much

b)

is really cold

c)

drastically changes throughout the year

d)

is mostly snowy

139.
Which biome, because of its climate, has the largest number of species of plants and animals?
a)
Tundra
b)
Rainforest
c)
Desert
d)
Pineforest
140.

An estuary is a _________________________ ecosystem.

a)

terrestrial

b)

aquatic

141.

A grassland is a _________________________ ecosystem.

a)

terrestrial

b)

aquatic

142.

In an estuary, the water is called ___________________ because it is a mix of salt water and fresh water.

a)

muddy

b)

brackish

c)

semi-salty

d)

semi-fresh

143.

The temperature in most ecosystems ____________________ due to the location of the ecosystem.

a)

stays the same all year

b)

varies

c)

is always cold

d)

is always hot

144.

Which ecosystem has two parts called the canopy and the understory?

a)

forest

b)

wetlands

c)

grasslands

d)

lakes and ponds

145.

Which of the following ecosystems are terrestrial?

a)

oceans

b)

wetlands

c)

forests

d)

estuaries

e)

grasslands

146.

Which of the following ecosystems are aquatic ecosystems?

a)

oceans

b)

grasslands

c)

wetlands

d)

lakes and ponds

e)

forests

147.

An estuary ecosystem is where the _________________ meets the ocean.

a)

lake

b)

pond

c)

river

d)

creek

148.

A wetland is a ____________________ ecosystem.

a)

terrestrial

b)

aquatic

149.

A forest is a _____________________ ecosystem.

a)

terrestrial

b)

aquatic

150.
All energy transformations in an ecosystem begin with
a)
a scavenger
b)
the sun
c)
a decomposer
d)
a herbivore
151.
a system of food chains that shows the transfer of energy  is termed
a)
food web
b)
food chain
c)
prey
d)
predator
152.
an example of producer consumer relationship would be
a)
lion eating a deer
b)
grasshopper getting energy from grass
c)
hawk getting energy from snakes
d)
earthworm breaking down dead material