Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Ecosystem and Food Chains Quiz

Total questions: 50

Worksheet time: 17mins

Name
Class
Date
1.

Which of the following best describes a food chain?

a)

A complex network of feeding relationships in an ecosystem

b)

The physical characteristics of an environment

c)

A linear sequence of organisms showing who eats whom

d)

The process of energy transfer between trophic levels

2.

In a food web, which organisms are considered primary producers?

a)

Herbivores

b)

Carnivores

c)

Decomposers

d)

Photosynthetic organisms

3.

Which of the following is NOT a biogeochemical cycle?

a)

Carbon cycle

b)

Nitrogen cycle

c)

Oxygen cycle

d)

Food cycle

4.

What is the primary role of decomposers in an ecosystem?

a)

To produce oxygen through photosynthesis

b)

To consume other organisms for energy

c)

To break down dead organisms and return nutrients to the environment

d)

To regulate the population of predators

5.

In the carbon cycle, where is the largest reservoir of carbon found?

a)

Atmosphere

b)

Oceans

c)

Fossil fuels

d)

Living organisms

6.

Which biome is characterized by low-growing plants and permanently frozen subsoil?

a)

Savanna

b)

Temperate deciduous forest

c)

Desert

d)

Tundra

7.

Which of the following is an example of a biogeochemical cycle?

a)

Water cycle

b)

Rock cycle

8.

What is the primary role of bacteria in the nitrogen cycle?

a)

They consume nitrogen directly from the air

b)

They convert nitrogen into forms usable by plants

c)

They release nitrogen back into the atmosphere

d)

They store nitrogen in their bodies for long periods

9.

Which terrestrial biome has the highest biodiversity?

a)

Tundra

b)

Temperate grassland

c)

Tropical rainforest

d)

Taiga

10.

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

a)

Food chains only include plants, while food webs include animals

b)

Food chains show energy flow, while food webs don't

c)

Food chains are linear, while food webs show interconnected feeding relationships

d)

Food chains are found in aquatic ecosystems, while food webs are found in terrestrial ecosystems

11.

Which of the following is a characteristic of freshwater ecosystems?

a)

High salinity levels

b)

Presence of coral reefs

c)

Limited biodiversity

d)

Low salt concentration

12.

What is the primary producer in most marine ecosystems?

a)

Kelp

b)

Phytoplankton

c)

Zooplankton

d)

Seagrass

13.

Which aquatic biome is characterized by slow-moving or standing water?

a)

River

b)

Estuary

c)

Pond

d)

Coral reef

14.

What is the term for the area where a river meets the ocean?

a)

Estuary

b)

Wetland

c)

Lagoon

d)

Fjord

15.

Which of the following is NOT a freshwater biome?

a)

Lake

b)

Stream

c)

Wetland

d)

Marine Inland

16.

Look at the food chain. How do foxes get energy?

a)

from eating rabbits

b)

from eating grass

c)

from the sun

d)

from eating other foxes

17.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
18.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
19.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
20.

Discuss the role of decomposers in the nutrient cycle of an ecosystem.

a)

Decomposers produce energy for primary consumers.

b)

Decomposers break down dead organic matter, returning nutrients to the soil.

c)

Decomposers are primary producers in the ecosystem.

d)

Decomposers compete with primary consumers for food.

21.

What do we call an animal that eats plants?

a)

Carnivore

b)

Omnivore

c)

Herbivore

d)

Insectivore

22.

What do we call animals that eat both plants and meat?

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Decomposers

23.

What do we call the sequence of who eats whom in a biological community?

a)

Food chain

b)

Food web

c)

Food circle

d)

Food square

24.

Which of the following best describes a food chain?

a)

A network of interconnected food webs

b)

A linear sequence of organisms through which nutrients and energy pass

c)

A group of organisms that share the same habitat

d)

A cycle of nutrient recycling

25.

What is the primary source of energy for most ecosystems?

a)

Water

b)

Sunlight

c)

Soil

d)

Wind

26.

What is at the very bottom of the food chain?

a)

Lions

b)

Plants

c)

Humans

d)

Bears

27.

What process will remove carbon from the ecosystem?

a)

cellular respiration

b)

photosynthesis

c)

decomposition

d)

combustion

28.
This is released by the weathering of rocks.
a)
Carbon
b)
Oxygen
c)
Phosphorus
d)
Nitrogen
29.
Plants and animals cannot use nitrogen directly from the air.
a)
True
b)
False
30.
_____ brings phosphorous into our waterways. .
a)
precipitation
b)
runoff
c)
transpiration
d)
condensation
31.
Organisms that need nitrogen to survive
a)
only plants
b)
only animals
c)
only bacteria
d)
all living organisms
32.
Organisms that play a role in the nitrogen cycle
a)
only plants
b)
only animals
c)
only bacteria
d)
plants, animals, & bacteria
33.

What is the largest reservoir for nitrogen?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

bacteria

34.
The process in which Nitrogen circulates and is recycled is called ____________
a)
The nitrogen cycle
b)
The water cycle
c)
The carbon cycle
d)
Nitrogen Fixation 
35.
Gas that makes up almost 80% of Earth's atmosphere
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
hydrogen
36.

Which cycle DOESN'T have an atmosphere component (part)?

a)

carbon

b)

nitrogen

c)

phosphorus

d)

water

37.
Organisms that need nitrogen to survive
a)
only plants
b)
only animals
c)
only bacteria
d)
all living organisms
38.
What happens during the process of denitrification?
a)
Nitrogen compounds turn into free nitrogen
b)
Free nitrogen turns into nitrogen compounds
39.
After plants and animals contain nitrogen, what puts it back into atmosphere and soil?
a)
decomposition
b)
precipitation
c)
condensation
d)
bacteria
40.

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

a)

eutrophication

b)

Nothing

c)

Death

d)

diseases

41.
What is the most abundant gas in the atmosphere?
a)
hydrogen
b)
oxygen
c)
helium
d)
nitrogen
42.
Which of the following statements is true of the phosphorus cycle?
a)
Phosphorus enters the atmosphere as phosphates.
b)
The phosphorus cycle utilizes the processes of erosion, and weathering.
c)
Phosphates are used in carbohydrate and glucose storage.
d)
The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.
43.

How does the burning of fossil fuels affect the cycle shown?

a)

It releases ozone into the atmosphere.

b)

It removes carbon from the atmosphere.

c)

It both releases and removes carbon from the atmosphere.

d)

It releases carbon into the atmosphere.

44.

Organisms require nitrogen to make which of the following?

a)

glucose and starch

b)

lipids and nucleic acids

c)

proteins and nucleic acids

d)

carbohydrates and proteins

45.
Organisms require nitrogen to make which of the following?
a)
glucose and starch
b)
lipids and nucleic acids
c)
proteins and nucleic acids
d)
carbohydrates and proteins
46.
What cycle is demonstrated in the diagram?
a)
The Carbon cycle
b)
The Water cycle
c)
The Nitrogen cycle
d)
The Life cycle
47.
What happens during the process of nitrogen-fixation?
a)
Nitrogen compounds turn into free nitrogen
b)
Free nitrogen turns into nitrogen compounds
48.

Name the correct trophic level for level 1.

a)

Tertiary

b)

Consumer

c)

Producer

d)

Quatemary

49.

In a food chain, which organisms are typically at the second trophic level?

a)

Primary producers

b)

Primary consumers

c)

Secondary consumers

d)

Tertiary consumers

50.

Name the trophic level in Level 2.

a)

Primary

b)

Tertiary

c)

Consumer

d)

Secondary

Similar Resources on Wayground

Protein Synthesis Review

50 questions

Protein Synthesis Review

quiz

Worksheet

•

9th - 10th Grade

Ecology

55 questions

Ecology

quiz

Worksheet

•

8th - 12th Grade

Heart A&P

50 questions

Heart A&P

quiz

Worksheet

•

9th - 12th Grade

WC Spring Benchmark

45 questions

WC Spring Benchmark

quiz

Worksheet

•

9th - 12th Grade

B24 7-9

51 questions

B24 7-9

quiz

Worksheet

•

9th Grade

Photosynthesis

47 questions

Photosynthesis

quiz

Worksheet

•

7th - 9th Grade

Unit 2 Remediation

47 questions

Unit 2 Remediation

quiz

Worksheet

•

9th - 12th Grade

Cell and Structures Functions and Photosynthesis

47 questions

Cell and Structures Functions and Photosynthesis

quiz

Worksheet

•

9th - 10th Grade