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Ecosystem Unit Test

Total questions: 38

Worksheet time: 20mins

Name
Class
Date
1.

Which organisms feed on the remains of dead plants and animals?

a)

omnivores

b)

herbivores

c)

decomposers

d)

carnivores

2.

Organisms that use energy from the sun to make their own food are called

a)

carnivores

b)

consumers

c)

omnivores

d)

producers

3.

In a food chain, the organism pictured is considered a(n)

a)

autotroph

b)

consumer

c)

herbivore

d)

decomposer

4.

What type of organism would recycle a dead tree in the forest?

a)

decomposer

b)

omnivore

c)

herbivore

d)

scavenger

5.

Beginning with the producer, which represents the correct order in a typical food chain?

a)

producer

b)

grass-rabbit-fox-mountain lion

c)

mountain lion-fox-rabbit-grass

d)

grass-fox-rabbit-mountain lion

6.

How do some animals, such as bears, deal with seasonal changes in the environment that result in cold temperatures and little food?

a)

They hibernate.

b)

They become extinct.

c)

They are camouflaged.

d)

They leave and find another home.

7.

If an animal lives in an ecosystem that changes slowly over many years, how will it most likely respond to the change?

a)

It will adapt.

b)

It will hibernate.

c)

It will become extinct.

d)

It will leave the area.

8.

What organism is the producer?

a)

Arthropds

b)

Birds

c)

Fungi

d)

Plants

9.

A mouse eats acorns and seeds on the ground. Then, a hawk eats the mouse. What is the hawk's role in this food chain?

a)

producer

b)

consumer

c)

predator

d)

prey

10.

The hairy rattleweed is a plant that grows in open pine woods in Georgia. Many of these woods have been cut down. How does this change in the environment MOST LIKELY affect the hairy rattleweed?

a)

The number of plants will decrease.

b)

The number of plants will increase.

c)

The number of plants will remain the same.

d)

The number of plants will first increase, then decrease.

11.

Many different trees and shrubs live in the Blue Ridge Mountains. This woody habitat supports many types of animals. One species, the black bear, lives in the Blue Ridge Mountains. What effect would logging MOST LIKELY have on the black bear?

a)

The black bear would become extinct.

b)

The black bear would most likely become a predator of other animals.

c)

The black bear would most likely move away in search of food and shelter.

d)

The black bear would adapt to the changes in its habitat and the numbers would stay about the same.

12.

The red-cockaded woodpecker is found in the pine forests of Georgia. It eats insects found in the barks of the pine trees and nests in the trees. How will a reduction in the number of pine trees MOST LIKELY affect the red-cockaded woodpecker?

a)

It will decrease in number.

b)

It will adapt to a new habitat.

c)

It will build nests in other trees.

d)

It will hide better from animals that eat it.

13.

How do the elephants help to maintain the population of birds that you can see perched on their backs in the picture above?

a)

The elephants supply a place for the birds to nest and reproduce.

b)

The elephants supply a much needed food source by allowing the birds to eat bugs off their backs.

c)

The elephants provide diversity in ecosystems by carrying the birds long distances as they travel in herds.

d)

The elephants provide a fresh water supply by carrying the birds back and forth from their local watering hole.

14.

A lion would be considered a

a)

competitor

b)

offspring

c)

predator

d)

prey

15.

A food chain is a circle. The transfer of energy moves from plant to animals to decomposer and back to plant. What supplies the energy the plants need?

a)

animals

b)

sun

c)

water

d)

wind

16.

We eat food for energy. The energy for any food chain begins with the sun and sunlight. Name an organism that is a producer that converts sunlight into chemical energy or sugar.

a)

Plants

b)

Consumers

c)

Decomposers

d)

Consumers.

17.

Plants make their own food using energy from the Sun, carbon dioxide from the air, and

a)

water from the soil.

b)

oxygen from the air.

c)

the soil it grows in.

d)

fertilizer from the store.

18.

Consider this energy pyramid. Energy moves up through the rows of the pyramid, starting with the grass at the bottom. Where does the grass get energy from?

a)

the Sun

b)

the air

c)

the Earth

d)

the water

19.

Unlike animals, plants use energy right from the Sun. What do plants make using the energy from the Sun?

a)

flowers

b)

food

c)

leaves

d)

water

20.

Which of these scenarios will upset the stability of the local ecosystem the MOST?

a)

A tree is cut down to be used for firewood.

b)

A hiking trail is cleared through the state park in your area.

c)

A person decides to build their small home in the middle of a forest.

d)

A local factory clears land to build and blocks the flow of the only river in the area..

21.

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

22.

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

23.

How does an increase in the number of people on Earth negatively affect the environment?

a)

more water is used causing draughts and affecting habitats

b)

more fossil fuels are burned

c)

habitats are destroyed because more space is needed

d)

All of the above

24.

Loggers remove a large portion of forest. Which of the following would NOT be considered a harmful effect this would have on the habitat of a squirrel?

a)

the squirrel would have fewer places to use as shelter

b)

the squirrel would have more space to move around

c)

the squirrel would face more exposure to predators

d)

the squirrel would have less resources to use as food

25.

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

26.
An environment that meets the needs of an organism.
a)
Habitat
b)
Niche
c)
Food Chain
d)
Prey
27.
A series of organisms that depend on one another for food.
a)
Prey
b)
Food Chain
c)
Food Web
d)
Energy Pyramid
28.
Consumers that are eaten by predators.
a)
environment
b)
Habitat
c)
Consumer
d)
Prey
29.
A consumer that eats prey.
a)
Prey
b)
Predator
c)
Consumer
d)
Food Web
30.
 a group of food chains that overlap.
a)
Food Web
b)
Food Chain
c)
Producer
d)
Consumer
31.

The living and nonliving things in an environment or area.

a)

ecosystem

b)

food web

c)

abiotic

32.

Choose the producer

a)

apple tree

b)

mushroom

c)

deer

33.

Choose the decomposer

a)

apple tree

b)

mushroom

c)

deer

34.

Choose the consumer

a)

apple tree

b)

mushroom

c)

deer

35.

Could the following factor lead to extinction?


Destruction of animals' habitat

a)

yes

b)

no

36.

Mice and grasshoppers are examples of prey.

a)

True

b)

False

37.

No longer existing as a species

a)

ecosystem

b)

population

c)

extinct

d)

habitat

38.

all the members of ONE species that live within an area of an ecosystem

a)

habitat

b)

extinct

c)

population

d)

fossil