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Energy nd Matter in an Ecosystem

Total questions: 68

Worksheet time: 59mins

Name
Class
Date
1.

Which process do plants use to turn sunlight into food energy?

a)

photosynthesis

b)

cellular respiration

c)

transpiration

d)

evaporation

2.

Which organism is an example of a producer?

a)

moth

b)

mushroom

c)

rose bush

d)

cheetah

3.

In the food chain below, which is the producer?


grass --> mouse --> snake --> hawk

a)

grass

b)

mouse

c)

snake

d)

hawk

4.
What is the original source of energy for organisms in a food chain. 
a)
plants
b)
animals
c)
sunlight
d)
consumers
5.
What part of a plant is responsible for capturing sunlight?
a)
stem
b)
leaves
c)
roots
d)
flower petals
6.
Which is the best definition of a food chain?
a)
a model of consumers providing energy to producers
b)
a method for growing plants without soil
c)
a process by which plants make food from energy in sunlight
d)
a path by which energy flow from one living thing to another
7.
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
8.

Why does every food chain begin with a producer?

a)

animals are all herbivores

b)

decomposers produce some food for animals

c)

animals produce their own food

d)

animals cannot create their own food

9.

What do plants need to produce their own food?

a)

sunlight, water, and oxygen

b)

sunlight, water, and carbon dioxide

c)

water, oxygen, and carbon dioxide

d)

water, soil, and oxygen

10.

An organism that gets energy fro eating another organism is --

a)

a producer

b)

a habitat

c)

a consumer

d)

photosynthesis

11.

Which organism doesn't belong in this group?

Tree, Fox, Grass, Strawberry Plant

a)

tree

b)

fox

c)

grass

d)

strawberry plant

12.

What is the role of the rabbit in this food chain?

sun --> plant --> rabbit --> snake

a)

to give energy to the snake

b)

to give energy to the plant

c)

to get energy directly from the sun

d)

to make its own food

13.

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

14.
Consumers obtain energy by
a)
eating other organisms
b)
eating plants
c)
photosynthesis
d)
nitrogen
15.
A __________________ is a type of animal that hunts other animals to eat. 
a)
prey
b)
herbivore
c)
predator
d)
producer
16.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
d)
composers
17.

Organisms that obtain energy by feeding on other organisms

a)

Producer

b)

Consumer

c)

Decomposer

18.

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

a)

Producer

b)

Consumer

c)

Decomposer

19.
A consumer gets energy by doing what?
a)
Making it themselves.
b)
Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem.
c)
Soaking it up from the ground.
d)
Feeding on other organisms.
20.
A food chain is?
a)
Overlapping food chains in an ecosystem.
b)
The amount of energy that moves from one feeding level to another in a food web.
c)
A series of events in which one organism eats another and obtains energy.
d)
biotic and abiotic factors in an area.
21.

Which of these shows a possible food chain for an ecosystem?

a)

shark--> fish --> plankton -->sun

b)

sun --> plankton --> fish --> shark

c)

plankton --> sun --> fish --> shark

d)

plankton --> fish --> shark --> sun

22.

A biotic factor is

a)

any living thing in an ecosystem

b)

any non living thing in an ecosystem

c)

all the members of one species

d)

sunlight

23.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
24.
Where do producers get their energy? 
a)
soil
b)
decomposers
c)
sun
d)
garbage
25.
Only eats meat
a)
omnivore
b)
herbivore
c)
carnivore
d)
primary consumer
26.
Only eats plants
a)
omnivore
b)
carnivore
c)
herbivore
d)
tertiary consumer
27.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
28.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
29.
A MUSHROOM is a
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Decomposer
30.
Which is the PRODUCER?
a)
Lettuce
b)
Slug
c)
Bird
d)
Cat
31.
Which is a HERBIVORE?
a)
Lettuce
b)
Slug
c)
Bird
d)
Cat
32.

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

33.

What is the bottom layer of the an energy pyramid?

a)

producer

b)

tertiary consumer

c)

Secondary consumer

d)

primary consumer

34.

the top layer of an energy pyramid a primary consumer?

a)

true

b)

false

35.

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

36.

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

37.

decomposers are producers.

a)

true

b)

false

38.

Which is a producer?

a)

Deer

b)

Tall grass

c)

Lion

d)

Worm

39.

What is this called?

a)

Food Web

b)

Abiotic Factors

c)

Food Chain

d)

None of the above

40.

What is this called?

a)

Food Web

b)

Food Chain

c)

Abiotic Factors

d)

None of the above

41.

If a frog is the prey, what could be the predator?

a)

Grass

b)

Insect

c)

Snake

d)

Snail

42.

What does a Primary Consumer eat?

a)

Tertiary Consumers

b)

Secondary Consumers

c)

Producers

d)

None of the above

43.

An organism that lives by breaking apart dead organic matter into simpler parts is...

a)

Scavenger

b)

Consumer

c)

Decomposer

d)

Carnivore

44.

A third-level consumer has to be which type?

a)

Carnivore

b)

Decompser

c)

Producer

d)

Herbivore

45.

An animal that eats other animals is a....

a)

Carnivore

b)

Omnivore

c)

Herbivore

d)

Decomposer

46.

In a food web, arrows point at:

a)

who gets energy

b)

who get eaten

c)

Both of the above

d)

None of the above

47.

What does a food web represent?

a)

All connections of energy flow throughout all organisms in a ecosystem.

b)

The specific ways that mutualism is carried out.

c)

A single pathway or energy flow between organisms.

d)

How carnivores get their food.

48.

Bacteria, fungi, and earthworms are examples of:

a)

Scavengers

b)

Predators

c)

Prey

d)

Decomposers

49.

Which of the following is a herbivore?

a)

Cricket

b)

Frog

c)

Hawk

d)

Shrew

50.

A community of living and nonliving things in their natural environment makes up a

a)

Food Web

b)

Eco System

c)

Food Chain

d)

None of the above

51.

__________ is an organism that only eats meat for energy.

a)

Omnivore

b)

Borivore

c)

Carnivore

d)

Herbivore

52.

__________ is an organism that eats BOTH plants and animals for energy.

a)

Omnivore

b)

Darnivore

c)

Carnivore

d)

Herbivore

53.

Bears eat fish, insects, plants, seeds, nuts and young elk. They are called __________.

a)

Franivore

b)

Carnivore

c)

Herbivore

d)

Omnivore

54.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
55.
What does every food chain start with?
a)
producers
b)
sun
c)
consumer
d)
decomposers
56.
Which of the following is NOT a consumer
a)
grass
b)
dog
c)
shark
d)
fish
57.

A hawk needs to eat many mice and rabbits becasue

a)

there are lots of mice and rabbits in an ecosystem

b)

the hawk gets only part of the energy from animals it eats

c)

the hawk in a part of a large food web

58.

Which of these organisms would receive energy from the snake?

a)

Plant

b)

Rabbit

c)

Mouse

d)

Hawk

59.

An animal that eats only animals is called:

a)

Consumer

b)

Omnivore

c)

Herbivore

d)

Carnivore

60.

What is the source of energy for plants to make food?

a)

other plants

b)

the sun

c)

the moon

d)

animals

61.

What do plants need to make food?

a)

water & oxygen

b)

water & carbon dioxide

c)

oxygen & dirt

d)

carbon dioxide & oxygen

62.

How do plants get the water they need to make food?

a)

roots bring water in from the soil

b)

the leaves bring water in from the air

c)

the flowers collect water

d)

seeds spread out to find water

63.

What is the food that plants make called?

a)

glucose

b)

oxygen

c)

leaves

d)

carbon dioxide

64.

Glucose is a kind of --

a)

meat

b)

air

c)

sugar

d)

leaf

65.

Which shows the REACTANTS for photosynthesis?

a)

oxygen & carbon dioxide

b)

dirt & oxygen

c)

water & carbon dioxide

d)

carbon dioxide & leaves

66.

Which gas do plants release during photosynthesis?

a)

oxygen

b)

carbon

c)

helium

d)

carbon dioxide

67.

What are the PRODUCTS of photosynthesis?

a)

oxygen & glucose

b)

carbon dioxide & oxygen

c)

glucose & carbon dioxide

d)

glucose only

68.

How are plants beneficial to animals?

a)

they eat harmful animals

b)

they provide oxygen & food for animals

c)

they provide carbon dioxide for animals

d)

they produce glucose for animals to eat

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