Ecosystem MCQ Multiple Choice Questions Answers

Q: 2. The conversion of ammonia to nitrate is known as ............................

Correct Answer is: all of these

Q: 5. An example of one way ecological cycle is

Correct Answer is: oxygen cycle

Q: 11. Nitrogen fixing blue green alga

Correct Answer is: Nitrosomonas

Q: 14. What is desertification?

Correct Answer is: Conversion of grassland into desert

Q: 16. Rain during November is more acidic than monsoon rain due to

Correct Answer is: none of the above.

Q: 17. The word Biophilia was coined by

Correct Answer is: Dr. Benjamine

Q: 18. An ecosystem gradually merges with an adjoining one through a transitional zone is called the ............................

Correct Answer is: shore effect

Q: 20. The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as ............................

Correct Answer is: Coolidge effect

Master the fundamentals of Ecosystems with our comprehensive Multiple Choice Questions (MCQs). Ideal for students and exam aspirants, these questions cover essential topics and help reinforce learning.

About Ecosystem MCQ Questions

Ecosystem MCQs delve into the intricate relationships between living organisms and their environment. These questions cover key concepts such as biodiversity, energy flow, and ecological interactions, ensuring a thorough understanding of the subject.

Why Practice Ecosystem Objective Questions?

Practicing Ecosystem MCQs offers numerous benefits. They help students prepare for school and college exams by reinforcing classroom learning. Competitive exam aspirants can use these questions to gain an edge in their preparations. Additionally, candidates preparing for interviews in environmental science and related fields will find these MCQs invaluable for concept revision and confidence building.

Who Should Use These MCQs?

Ecosystem MCQ Questions for Practice

1. The term Ecology was coined by

A.G.Tansley
Earnst Haeckel
Aristotle
Linnaeus

2. The conversion of ammonia to nitrate is known as ............................

ammonification
nitrification
denitrification
all of these

3. Organisms which depened on Producers for nutrition are called

Autotrophs
Saprophytes
Consumers
Xerophytes

4. The inherent ability of organisms to reproduce and multiply is called

C value
biotic potential
carrying capacity
K value

5. An example of one way ecological cycle is

carbon dioxide cycle
water cycle
energy cycle
oxygen cycle

6. The animal which consumes decaying organic matter is ............................

Carnivore
Detritivore
Herbivore
Producers

7. Sulphur bacteria are examples of

Carnivores
Heterotrophs
Saprophytes
Autotrophs

8. ............................ is an example of bottom feeders.

Cat fish
Frog
Snake
Tadpole

9. The largest brackish water lake situated in Asia is in Orissa. Which is the lake?

Chilka lake
Vembanad lake
Woolar lake
Dal lake

10. The presence of which is necessary for photosynthesis

Chloroform
Chlorophyll
Phosphorus
Polymer

11. Nitrogen fixing blue green alga

Clostridium
Rhizobium
Nostoc
Nitrosomonas

12. Which one is natures cleaner?

Consumers
Producers
Decomposers and Scavengers
Symbionts

13. Autotrophs are ............................

Consumers
Herbivores
Saprophytes
Producers

14. What is desertification?

Conversion of forests into desert
Conversion of croplands into desert
Conversion of grassland into desert
all of the above

15. Ramsar Convention refers to the conservation of ............................

Deserts
Wetlands
Agriculture lands
Forest land

16. Rain during November is more acidic than monsoon rain due to

dissolved CO2
dissolved SO2
dissolved NO2
none of the above.

17. The word Biophilia was coined by

Dr. Hackel
Dr. Johanssen
Dr. Benjamine
E. O. Wilson

18. An ecosystem gradually merges with an adjoining one through a transitional zone is called the ............................

Ecological niche
ecological footprint
ecotone
shore effect

19. Study of inter-relationship between organisms and their environment is

Ecology
Ecosystem
Phytogeography
Ethology

20. The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as ............................

Edge effect
Root effect
Raman effect
Coolidge effect

21. The term Eco implies

Environment
Ecotone
Ecotourism
Soil

22. ............................ trees shed their leaves during winter and hot summer.

ever green
coniferous
deciduous
Shola

23. Forests grow in high rain fall areas are

ever green forests
temperate forests
conifers
Tundra

24. The forests which occur in law rain fall area is

Evergreen forests
deciduous forests
Coniferous forest
all the above

25. A set of organisms that resemble one another in appearance and behavior is called a ............................

Exons
Prions
Species
guilds

26. When number of food chains is interlocked this is called

food link
food chain
food web
pyramid

27. Complex interlinked food chains are called

Food Web
Food net work
Trophic levels
Food pyramid

28. All the genes of a population is called

gene pool
genome
gene bunch
gene population

29. The first trophic level in a food chain

Green Plants
Herbivores
Carnivores
Bacteria

30. The species that flower are called

gymnosperms
bryophytes
angiosperms
algae

Ecosystem MCQ Multiple Choice Questions Answers | Quiz for Practice

About Ecosystem MCQ Questions

Why Practice Ecosystem Objective Questions?

Who Should Use These MCQs?

Ecosystem MCQ Questions for Practice

1. The term Ecology was coined by

2. The conversion of ammonia to nitrate is known as ............................

3. Organisms which depened on Producers for nutrition are called

4. The inherent ability of organisms to reproduce and multiply is called

5. An example of one way ecological cycle is

6. The animal which consumes decaying organic matter is ............................

7. Sulphur bacteria are examples of

8. ............................ is an example of bottom feeders.

9. The largest brackish water lake situated in Asia is in Orissa. Which is the lake?

10. The presence of which is necessary for photosynthesis

11. Nitrogen fixing blue green alga

12. Which one is natures cleaner?

13. Autotrophs are ............................

14. What is desertification?

15. Ramsar Convention refers to the conservation of ............................

16. Rain during November is more acidic than monsoon rain due to

17. The word Biophilia was coined by

18. An ecosystem gradually merges with an adjoining one through a transitional zone is called the ............................

19. Study of inter-relationship between organisms and their environment is

20. The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as ............................

21. The term Eco implies

22. ............................ trees shed their leaves during winter and hot summer.

23. Forests grow in high rain fall areas are

24. The forests which occur in law rain fall area is

25. A set of organisms that resemble one another in appearance and behavior is called a ............................

26. When number of food chains is interlocked this is called

27. Complex interlinked food chains are called

28. All the genes of a population is called

29. The first trophic level in a food chain

30. The species that flower are called

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Ecosystem MCQ Multiple Choice Questions Answers | Quiz for Practice

About Ecosystem MCQ Questions

Why Practice Ecosystem Objective Questions?

Who Should Use These MCQs?

Ecosystem MCQ Questions for Practice

1. The term Ecology was coined by

2. The conversion of ammonia to nitrate is known as ............................

3. Organisms which depened on Producers for nutrition are called

4. The inherent ability of organisms to reproduce and multiply is called

5. An example of one way ecological cycle is

6. The animal which consumes decaying organic matter is ............................

7. Sulphur bacteria are examples of

8. ............................ is an example of bottom feeders.

9. The largest brackish water lake situated in Asia is in Orissa. Which is the lake?

10. The presence of which is necessary for photosynthesis

11. Nitrogen fixing blue green alga

12. Which one is natures cleaner?

13. Autotrophs are ............................

14. What is desertification?

15. Ramsar Convention refers to the conservation of ............................

16. Rain during November is more acidic than monsoon rain due to

17. The word Biophilia was coined by

18. An ecosystem gradually merges with an adjoining one through a transitional zone is called the ............................

19. Study of inter-relationship between organisms and their environment is

20. The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as ............................

21. The term Eco implies

22. ............................ trees shed their leaves during winter and hot summer.

23. Forests grow in high rain fall areas are

24. The forests which occur in law rain fall area is

25. A set of organisms that resemble one another in appearance and behavior is called a ............................

26. When number of food chains is interlocked this is called

27. Complex interlinked food chains are called

28. All the genes of a population is called

29. The first trophic level in a food chain

30. The species that flower are called

Your Score

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