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5.1-5.2 Energy and Ecosystems

Total questions: 74

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

Organisms that make their own food

a)

Producer

b)

Consumer

c)

Decomposer

2.

Organisms that obtain energy by feeding on other organisms

a)

Producer

b)

Consumer

c)

Decomposer

3.

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

a)

Producer

b)

Consumer

c)

Decomposer

4.

Consumers that eat only plants

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

5.

Consumers that eat only animals

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

6.

Consumers that eat both plants and animals

a)

Omnivores

b)

Carnivores

c)

Herbivores

d)

Scavengers

7.

Consumers that feed on the bodies of dead organisms

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

8.

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

a)

chain

b)

web

c)

pyramid

d)

plate

9.

A food _______ consists of many overlapping food ________.

a)

web, chains

b)

chain, webs

c)

pyramid, webs

d)

web, pyramids

10.

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

11.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

12.

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

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

a)

Vole

b)

Frog

c)

Insect

d)

Thrush

13.

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

14.

In the energy pyramid, what comes after the producers?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

15.

Which group of organisms is missing from the food web above?

a)

Carnivore

b)

Herbivore

c)

Omnivore

d)

Decomposer

16.

Looking at the chart below what type of organism is the Alaskan brown bear?

a)

Carnivore

b)

Herbivore

c)

Omnivore

d)

Decomposer

17.

Which of the following has the largest population in the Indian River Lagoon system?

a)

Crab

b)

Egret

c)

Flounder

d)

Phytoplankton

18.

How much energy will be available for the flounder if the plankton at the bottom of this pyramid is able to produce 10,000 kcal of energy from the photosynthesis?

a)

1000

b)

100

c)

10

d)

1

19.

What is the primary source of energy for the ecosystem pictured above?

a)

Grass and Green plants

b)

Hawks and Deer

c)

Tadpoles and Fish

d)

Sun

20.

Observe the food chain below. What would be the result of disease killing off most of the mouse population?

a)

All populations would be relatively unaffected

b)

The grasshoppers would become extinct

c)

The grasshopper population would decrease; the owl population would increase

d)

The grasshopper population would increase and the owl population would decrease

21.
In a particular ecosystem, a white-tailed deer feeds on branches from a red oak tree. Gypsy moth caterpillars also feed on the leaves of the oak tree. Acorns from the tree fall to the soil. Those acorns that take root grow into new oak trees over time. Which of the following is an abiotic factor in this ecosystem?
a)
Type of Soil
b)
Species of Caterpillar
c)
Number of Trees
d)
Species of Deer
22.

Which type of interaction exists between shrimp and blue crabs in this food web?

a)

Blue crabs prey on shrimp.

b)

Shrimp compete with blue crabs for food.

c)

Shrimp help blue crabs filter polluted water.

d)

Shrimp decompose matter for blue crabs.

23.

Where do producers get energy?

a)

consumers

b)

producers

c)

sunlight

d)

predators

24.

Which of the following is an example of two consumers?

a)

grass and grasshopper

b)

flower and turtle

c)

berries and deer

d)

rabbit and owl

25.

Which statement is true?

a)

Only animals depend on sunlight

b)

Producers depend on consumers

c)

Plants and animals depend on sunlight

d)

Only plants depend on sunlight

26.

How do consumers gain energy?

a)

They eat producers and other consumers

b)

They make their own food

c)

They eat only producers

d)

They eat only other consumers

27.

How is energy supplied to a food web?

a)

Scavengers eat dead organisms

b)

Decomposers release nutrients

c)

Plants carry out photosynthesis

d)

Predators consume prey

28.

How is energy supplied to a food web?

a)

Scavengers eat dead organisms

b)

Decomposers release nutrients

c)

Plants carry out photosynthesis

d)

Predators consume prey

29.

In which order is energy transferred through a food chain?

a)

Sun to plants to animals

b)

Sun to animals to plants

c)

plants to animals to sun

d)

plants to Sun to animals

30.

Which group lists only decomposers?

a)

tadpoles, frogs, and algae

b)

bacteria, mushrooms, and earthworms

c)

shrimp, crayfish, and turtles

31.

What is the role of a producer in a food chain?

a)

preys on animals

b)

makes food

c)

eats decayed animals

d)

eats plants

32.

Which organisms are producers?

a)

frogs

b)

eagles

c)

crickets

d)

green plants

33.

Wolves and cougars were nearly hunted to extinction long ago. Their natural prey are deer and elk. Which most likely happened to the deer and elk populations?

a)

They stayed the same

b)

They moved away

c)

They increased

d)

They decreased

34.

Which is NOT a way organisms use energy?

a)

Plants use energy to make food

b)

Birds use energy to make their own food

c)

Animals use energy for all life's activites

d)

Plants use energy to make food

35.

Why are decomposers important in any ecosystem?

a)

They cause dangerous illnesses in humans

b)

They kill scavengers which are harmful to an ecosystem

c)

They remove nutrients and organic matter from the soil

d)

They break down dead organisms into simpler materials

36.

What is the role of a producer in a food chain?

a)

preys on animals

b)

makes food

c)

eats decayed animals

d)

eats plants

37.

Which of the following is NOT provided by a nonliving thing?

a)

food

b)

air

c)

water

d)

sunlight

38.

If the sun were completely blocked so that it no longer provided energy to the plants in a lake, what would happen to the remaining life in the lake?

a)

All of the carnivores would die

b)

All of the organisms in the lake would die

c)

Only the animals that eat the plants would die

d)

Only the plants would die

39.

If the number of frogs decreases, which population will most likely increase?

a)

crickets

b)

eagles

c)

snakes

d)

green plants

40.

Which pair of organisms has a predator and prey relationship?

a)

squirrel and rabbit

b)

corn plant and crow

c)

flowering plant and bee

d)

mouse and snake

41.

What happens to an apple that has been left in a lunch box over several weeks?

a)

Consumers are eating it

b)

The apple is photosythesizing

c)

Scavengers are eating the apple

d)

The apple is decaying

42.

If a black bear which eats rabbits is taken out of the food chain, what will happen to the rabbit?

a)

The number of rabbits would increase

b)

The number of rabbits would decrease

c)

The number would stay the same

d)

The rabbits would move

43.

A diagram that shows the transfer of energy in an ecosystem by using several food chains.

a)

ecosystem

b)

food web

c)

environment

d)

food chain

44.

A diagram that shows the transfer of energy from one organism to another (who is eaten by what).

a)

ecosystem

b)

environment

c)

food chain

d)

food web

45.

All the green plants that provide the energy for consumers.

a)

consumers

b)

producers

c)

decomposers

d)

herbivores

46.
Most producers get energy from the Sun using the process of
a)
cellular respiration
b)
chemosynthesis
c)
photosynthesis
d)
consumption
47.
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
48.
What are the products of photosynthesis?
a)
Carbon dioxide and water
b)
Carbon dioxide and oxygen
c)
Glucose and oxygen
d)
Glucose and water
49.
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.
50.

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

51.

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.

52.

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.

53.

Carbon dioxide enters a plant through its ___________.

a)

stem

b)

roots

c)

chloroplast

d)

stomata

54.

Plants breathe out ___________ which humans and animals breathe in.

a)

carbon dioxide

b)

oxygen

c)

nitrogen

d)

hydrogen

55.

What is passed from producers to various consumers in a food chain?

a)

adaptation

b)

fungi

c)

diseases

d)

energy

56.

_____________ factors are living things in an ecosystem like grass.

a)

Biotic

b)

Abiotic

57.

___________ factors are nonliving things in an ecosystem like temperature.

a)

Biotic

b)

Abiotic

58.

___________________ are decomposers.

a)

Bananas

b)

Mushrooms

c)

Green peppers

d)

Peanuts

59.

_____________ are producers because they make their own food using energy from the sun.

a)

Animals

b)

Humans

c)

Plants

d)

Decomposers

60.

A species is considered to be extinct when

a)

The last member of that species has disappeared

b)

All of that species' habitat has disappeared

c)

Only a few members of that species is left

d)

There is an abundance of that species

61.
The capturing of the suns energy is possible through a process called _____________
a)
Chemosynthesis
b)
Photosynthesis
62.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
63.
Which is NOT a consumer?
a)
mushroom
b)
bird
c)
carnivore 
d)
omnivore 
64.
Where do producers get their energy from?
a)
the ground
b)
other animals
c)
decomposers
d)
the sun
65.
Which choice has a group of only consumers?
a)
grass, cows, birds
b)
tigers, turtles, seaweed
c)
owl, snake, bear
d)
castus, sun, mushroom
66.
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
67.
How is the sun a part of a food chain?
a)
it is eaten
b)
it is the energy source
c)
it feeds animals
d)
it tastes good
68.
What is a food chain?
a)
A necklace.
b)
Jewelry made of food.
c)
A path showing how energy moves from one living thing to another.
d)
A life cycle.
69.
What do the arrows represent in a food chain?
a)
Stop
b)
Start
c)
"Gives energy to"
70.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
71.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
72.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
73.
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
74.
decomposer
a)
an organism that kills another organism or a prey (called predator)
b)
an organism that breaks down dead organisms and returns material to the environment
c)
an organism that gets killed by a predator (called prey)

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