Quiz: Ecosystems Quiz


Ecosystems QuizOnline version Ecosystem basics by Schruti A/P Sivanesvaran E25B3880 1 What is an abiotic component of an ecosystem? Choose one or more answers a Living organisms b Predators c Non-living physical factors like climate, water, and soil. d Decomposers 2 What is a biotic component of an ecosystem? Choose one or more answers a Non-living minerals b Air and water only c Climate and soil d Living organisms in the environment. 3 Which best describes a food chain? Choose one or more answers a All decomposers first, then producers b A linear sequence showing energy transfer from one organism to another. c A complex web of all species d A single habitat with no feeding 4 How does a food web differ from a food chain? Choose one or more answers a Food webs are shorter b Food webs ignore energy flow c Food webs exclude producers d Food webs show many interconnected feeding relationships. 5 Why are ecosystems important? Choose one or more answers a They have no practical use b They only look pretty c Only regulate weather d They provide services like food, clean water, and pollination. 6 Which is a common threat to ecosystems? Choose one or more answers a Habitat loss due to land-use change. b Increased biodiversity c Overproduction of goods d Excessive tourism without impact 7 What happens if a keystone species is removed? Choose one or more answers a Only affects abiotic factors b Has no effect on the ecosystem c Disrupts many other species and ecosystem functions. d Increases only that species' population 8 What is the role of primary producers in ecosystems? Choose one or more answers a Organisms that synthesize organic energy (e.g., plants). b Top predators c Herbivores that never eat plants d Decomposers only 9 Which is an abiotic factor? Choose one or more answers a Temperature b Bacteria c Pollinators d Ferns 10 How do human activities commonly impact ecosystems? Choose one or more answers a Deforestation and pollution reduce biodiversity and services. b No impact on ecosystems c Always improves ecosystem health d Increase species richness Feedback 1 Abiotic factors are non-living; biotic factors are living organisms. 2 Biotic refers to living things; abiotic are non-living. 3 Food chains are simplified paths; food webs show networks. 4 Webs are networks; chains are linear. 5 Ecosystems support life with resources and services. 6 Loss of habitat reduces species and functions. 7 Keystone species have disproportionate influence on structure. 8 Producers convert solar energy into usable forms for others. 9 Temperature is a non-living (abiotic) factor. 10 Humans often harm ecosystems through habitat loss and pollution.

1

What is an abiotic component of an ecosystem?

Choose one or more answers

a

Living organisms

b

Predators

c

Non-living physical factors like climate, water, and soil.

d

Decomposers

2

What is a biotic component of an ecosystem?

Choose one or more answers

a

Non-living minerals

b

Air and water only

c

Climate and soil

d

Living organisms in the environment.

3

Which best describes a food chain?

Choose one or more answers

a

All decomposers first, then producers

b

A linear sequence showing energy transfer from one organism to another.

c

A complex web of all species

d

A single habitat with no feeding

4

How does a food web differ from a food chain?

Choose one or more answers

a

Food webs are shorter

b

Food webs ignore energy flow

c

Food webs exclude producers

d

Food webs show many interconnected feeding relationships.

5

Why are ecosystems important?

Choose one or more answers

a

They have no practical use

b

They only look pretty

c

Only regulate weather

d

They provide services like food, clean water, and pollination.

6

Which is a common threat to ecosystems?

Choose one or more answers

a

Habitat loss due to land-use change.

b

Increased biodiversity

c

Overproduction of goods

d

Excessive tourism without impact

7

What happens if a keystone species is removed?

Choose one or more answers

a

Only affects abiotic factors

b

Has no effect on the ecosystem

c

Disrupts many other species and ecosystem functions.

d

Increases only that species' population

8

What is the role of primary producers in ecosystems?

Choose one or more answers

a

Organisms that synthesize organic energy (e.g., plants).

b

Top predators

c

Herbivores that never eat plants

d

Decomposers only

9

Which is an abiotic factor?

Choose one or more answers

a

Temperature

b

Bacteria

c

Pollinators

d

Ferns

10

How do human activities commonly impact ecosystems?

Choose one or more answers

a

Deforestation and pollution reduce biodiversity and services.

b

No impact on ecosystems

c

Always improves ecosystem health

d

Increase species richness

Feedback

1

Abiotic factors are non-living; biotic factors are living organisms.

2

Biotic refers to living things; abiotic are non-living.

3

Food chains are simplified paths; food webs show networks.

4

Webs are networks; chains are linear.

5

Ecosystems support life with resources and services.

6

Loss of habitat reduces species and functions.

7

Keystone species have disproportionate influence on structure.

8

Producers convert solar energy into usable forms for others.

9

Temperature is a non-living (abiotic) factor.

10

Humans often harm ecosystems through habitat loss and pollution.

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Ecosystems Quiz

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Ecosystems QuizOnline version

by Schruti A/P Sivanesvaran E25B3880

What is an abiotic component of an ecosystem?

Choose one or more answers

What is a biotic component of an ecosystem?

Choose one or more answers

Which best describes a food chain?

Choose one or more answers

How does a food web differ from a food chain?

Choose one or more answers

Why are ecosystems important?

Choose one or more answers

Which is a common threat to ecosystems?

Choose one or more answers

What happens if a keystone species is removed?

Choose one or more answers

What is the role of primary producers in ecosystems?

Choose one or more answers

Which is an abiotic factor?

Choose one or more answers

How do human activities commonly impact ecosystems?

Choose one or more answers

Feedback

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