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MCQ Questions for Class 9 Science Chapter 12 Patterns in Life: Diversity and Classification

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Here we are on the last chapter of NCERT book for class 9 Chapter 12 Patterns in Life: Diversity and Classification. In this chapter we have added 35 MCQs from the book and 10 MCQs each for True & False and Fill in the blanks questions.

Lets have a look a some of the top important points from the chapter –

  • Biodiversity means variety of living organisms.
  • Classification groups organisms using common characteristics.
  • Endemic species occur naturally in specific regions.
  • Biodiversity hotspots contain many endemic species.
  • Western Ghats is a biodiversity hotspot.
  • Evolution produces diversity through accumulated variations.
  • Classification uses morphology, nutrition, reproduction, genetics.
  • Biological classification organizes study of organisms.
  • Five kingdoms: Monera, Protista, Fungi, Plantae, Animalia.
  • Monera includes unicellular prokaryotic organisms.
  • Protista contains unicellular eukaryotic organisms.
  • Fungi possess chitin cell walls and decomposers.
  • Plantae are multicellular autotrophs with cellulose walls.
  • Animalia are multicellular heterotrophic eukaryotes.
  • Notochord separates chordates from non-chordates.

35 MCQ Questions for Class 9 Science: Chapter 12 Patterns in Life: Diversity and Classification

Question 1. What does biodiversity refer to?

a) Soil types only
b) Variety of life forms
c) Climate conditions
d) Water resources

Answer:

b) Variety of life forms — Includes all living organisms.

Question 2. Which organism releases most atmospheric oxygen?

a) Fungi
b) Birds
c) Microscopic algae
d) Bacteria

Answer:

c) Microscopic algae — Major oxygen producers.

Question 3. Species found only in one region are called:

a) Exotic species
b) Endemic species
c) Migratory species
d) Hybrid species

Answer:

b) Endemic species — Restricted natural distribution.

Question 4. Which is an endemic Indian species?

a) Kangaroo
b) Polar bear
c) Nilgiri tahr
d) Penguin

Answer:

c) Nilgiri tahr — Native to Western Ghats.

Question 5. Biodiversity hotspots have:

a) Few organisms
b) Many endemic species
c) Only animals
d) Only plants

Answer:

b) Many endemic species — High conservation priority.

Question 6. Which is a biodiversity hotspot?

a) Thar Desert only
b) Western Ghats
c) Indo-Gangetic Plain
d) Deccan Plateau

Answer:

b) Western Ghats — Globally recognized hotspot.

Question 7. Classification helps in:

a) Increasing rainfall
b) Organizing biodiversity
c) Making fertilizers
d) Creating species

Answer:

b) Organizing biodiversity — Simplifies study.

Question 8. Similar organisms may share:

a) Same habitat only
b) Common ancestry
c) Same color
d) Same size

Answer:

b) Common ancestry — Evolutionary relationship.

Question 9. Which is NOT a classification criterion?

a) Cell structure
b) Nutrition
c) Favorite food
d) Reproduction

Answer:

c) Favorite food — Not scientific.

Question 10. Genetic similarity is studied using:

a) RNA
b) DNA
c) Protein
d) Lipid

Answer:

b) DNA — Reveals inherited traits.

Question 11. Aristotle classified animals mainly by:

a) DNA
b) Habitat
c) Nutrition
d) Cells

Answer:

b) Habitat — Land, water, air.

Question 12. Two-kingdom classification included:

a) Monera and Protista
b) Plantae and Animalia
c) Fungi and Plantae
d) Protista and Animalia

Answer:

b) Plantae and Animalia — Earliest formal system.

Question 13. Who proposed the three-kingdom system?

a) Aristotle
b) Whittaker
c) Haeckel
d) Copeland

Answer:

c) Haeckel — Added Protista.

Question 14. Which kingdom was added for unicellular organisms?

a) Plantae
b) Animalia
c) Protista
d) Fungi

Answer:

c) Protista — Microscopic eukaryotes.

Question 15. Bacteria belong to:

a) Fungi
b) Protista
c) Monera
d) Plantae

Answer:

c) Monera — Prokaryotic kingdom.

Question 16. Five-kingdom classification was proposed by:

a) Aristotle
b) Linnaeus
c) Haeckel
d) Whittaker

Answer:

d) Whittaker — In 1969.

Question 17. Monera organisms are:

a) Multicellular
b) Prokaryotic
c) Seed-bearing
d) Vascular

Answer:

b) Prokaryotic — No true nucleus.

Question 18. Rhizobium is a:

a) Fungus
b) Plant
c) Bacterium
d) Animal

Answer:

c) Bacterium — Nitrogen-fixing microbe.

Question 19. Cyanobacteria are:

a) Heterotrophs only
b) Autotrophs
c) Animals
d) Fungi

Answer:

b) Autotrophs — Photosynthetic organisms.

Question 20. Amoeba belongs to:

a) Monera
b) Plantae
c) Protista
d) Fungi

Answer:

c) Protista — Unicellular eukaryote.

Question 21. Fungal cell walls contain:

a) Cellulose
b) Chitin
c) Lignin
d) Pectin

Answer:

b) Chitin — Characteristic fungal wall.

Question 22. Fungi mainly act as:

a) Producers
b) Consumers
c) Decomposers
d) Pollinators

Answer:

c) Decomposers — Recycle nutrients.

Question 23. Which fungus is unicellular?

a) Mushroom
b) Penicillium
c) Yeast
d) Aspergillus

Answer:

c) Yeast — Exception in fungi.

Question 24. Plant cell walls are made of:

a) Chitin
b) Cellulose
c) Keratin
d) Starch

Answer:

b) Cellulose — Structural support.

Question 25. Example of Thallophyta:

a) Moss
b) Fern
c) Spirogyra
d) Pine

Answer:

c) Spirogyra — Simple algal plant.

Question 26. Bryophytes are called:

a) Desert plants
b) Plant amphibians
c) Seed plants
d) Flowering plants

Answer:

b) Plant amphibians — Need moisture.

Question 27. Bryophytes possess:

a) True roots
b) Rhizoids
c) Seeds
d) Flowers

Answer:

b) Rhizoids — Root-like structures.

Question 28. Pteridophytes have:

a) Flowers
b) Cones
c) Vascular tissues
d) Fruits

Answer:

c) Vascular tissues — Xylem and phloem.

Question 29. Which tissue transports water?

a) Phloem
b) Cortex
c) Xylem
d) Epidermis

Answer:

c) Xylem — Water-conducting tissue.

Question 30. Gymnosperm seeds are:

a) Inside fruits
b) Naked
c) Microscopic
d) Spore-like

Answer:

b) Naked — Exposed on cones.

Question 31. Example of a gymnosperm:

a) Rose
b) Mango
c) Pine
d) Moss

Answer:

c) Pine — Cone-bearing plant.

Question 32. Angiosperms produce:

a) Cones only
b) Spores only
c) Flowers and fruits
d) Rhizoids

Answer:

c) Flowers and fruits — Advanced reproduction.

Question 33. Animals are:

a) Autotrophic
b) Heterotrophic
c) Photosynthetic
d) Saprophytic

Answer:

b) Heterotrophic — Depend on others.

Question 34. Notochord is present in:

a) Chordates
b) Porifera
c) Cnidaria
d) Fungi

Answer:

a) Chordates — Key identifying feature.

Question 35. Porifera are commonly called:

a) Corals
b) Jellyfish
c) Sponges
d) Worms

Answer:

c) Sponges — Pore-bearing animals.

10 True and False Questions for Chapter 12 Patterns in Life: Diversity and Classification

Question 1. Biodiversity refers to the variety of living organisms. (True/False)

Answer:

True

Question 2. Endemic species are found throughout the world. (True/False)

Answer:

False

Question 3. The Western Ghats are a biodiversity hotspot. (True/False)

Answer:

True

Question 4. Monera consists of multicellular eukaryotes. (True/False)

Answer:

False

Question 5. Amoeba belongs to Kingdom Protista. (True/False)

Answer:

True

Question 6. Fungal cell walls are made of chitin. (True/False)

Answer:

True

Question 7. Bryophytes possess true roots and stems. (True/False)

Answer:

False

Question 8. Pteridophytes contain vascular tissues. (True/False)

Answer:

True

Question 9. Gymnosperms produce seeds enclosed in fruits. (True/False)

Answer:

False

Question 10. A notochord is a characteristic feature of chordates. (True/False)

Answer:

True

10 Fill in the Blanks Questions for Chapter 12 Patterns in Life: Diversity and Classification

Question 1. The variety of living organisms is called __________.

Answer:

Biodiversity

Question 2. Species found naturally in one region are __________ species.

Answer:

Endemic

Question 3. The kingdom __________ contains all prokaryotic organisms.

Answer:

Monera

Question 4. Amoeba belongs to the kingdom __________.

Answer:

Protista

Question 5. The cell wall of fungi is made of __________.

Answer:

Chitin

Question 6. Plant cell walls are primarily composed of __________.

Answer:

Cellulose

Question 7. Bryophytes possess root-like structures called __________.

Answer:

Rhizoids

Question 8. The water-conducting tissue in plants is __________.

Answer:

Xylem

Question 9. Gymnosperms produce __________ seeds.

Answer:

Naked

Question 10. The presence of a __________ distinguishes chordates.

Answer:

Notochord

Question on Match the Columns

Unmatched Columns – Questions

Column A Column B
(i) Monera (a) Plants with flowers and fruits
(ii) Protista (b) Organisms with a notochord
(iii) Fungi (c) Unicellular eukaryotic organisms
(iv) Angiosperms (d) Prokaryotic organisms
(v) Gymnosperms (e) Organisms with chitin cell walls
(vi) Chordates (f) Plants with naked seeds

Matched Columns – Answer

Column A Column B
(i) Monera (d) Prokaryotic organisms
(ii) Protista (c) Unicellular eukaryotic organisms
(iii) Fungi (e) Organisms with chitin cell walls
(iv) Angiosperms (a) Plants with flowers and fruits
(v) Gymnosperms (f) Plants with naked seeds
(vi) Chordates (b) Organisms with a notochord

Related Class 9 Biology Chapters

Classification is based on cells, tissues and how living things reproduce:

Next chapter: Chapter 13 – Earth as a System: Energy, Matter, and Life

See all chapters: MCQ Questions for Class 9 Science – All 13 Chapters

Amit holds a BE in Mechanical Engineering and brings a genuine passion for mathematics to IndiaFolks. He creates NCERT-aligned content for students from Classes 4 to 10. He specialises in breaking down tricky concepts into clear, step-by-step solutions, from worksheets and MCQs to aptitude problems. He makes the tough problems easier for Indian students to build confidence and score better in Maths. His goal is simple: turn every student into a problem-solver who actually enjoys the subject.

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