Extra 40 multiple-choice questions (MCQs) along with their answers for the chapter:7 "Diversity in Living Organisms" from Class 9 CBSE Science:-

1. What is the basic unit of classification?

a) Species

b) Genus

c) Family

d) Order

Answer: a) Species

2. The term “taxonomy” was coined by:

a) Aristotle

b) Linnaeus

c) Theophrastus

d) Whittaker

Answer: b) Linnaeus

3. Who proposed the five-kingdom classification?

a) Linnaeus

b) Whittaker

c) Haeckel

d) Aristotle

Answer: b) Whittaker

4. Which kingdom includes unicellular prokaryotic organisms?

a) Protista

b) Monera

c) Fungi

d) Plantae

Answer: b) Monera

5. Which of the following is a characteristic of fungi?

a) Autotrophic nutrition

b) Cell wall made of chitin

c) Presence of chlorophyll

d) Prokaryotic cell structure

Answer: b) Cell wall made of chitin

6. Which kingdom contains both unicellular and multicellular organisms?

a) Monera

b) Fungi

c) Protista

d) Plantae

Answer: c) Protista

7. Which phylum includes sponges?

a) Coelenterata

b) Porifera

c) Annelida

d) Mollusca

Answer: b) Porifera

8. The term "binomial nomenclature" was given by:

a) Darwin

b) Linnaeus

c) Aristotle

d) Whittaker

Answer: b) Linnaeus

9. Which of the following is an example of a coelenterate?

a) Hydra

b) Earthworm

c) Octopus

d) Cockroach

Answer: a) Hydra

10. Which phylum does the earthworm belong to?

a) Mollusca

b) Annelida

c) Arthropoda

d) Echinodermata

Answer: b) Annelida

11. Which characteristic is unique to arthropods?

a) Jointed appendages

b) Radial symmetry

c) Water vascular system

d) Endoskeleton

Answer: a) Jointed appendages

12. The exoskeleton of arthropods is made up of:

a) Cellulose

b) Chitin

c) Keratin

d) Calcium carbonate

Answer: b) Chitin

13. Which of these is a warm-blooded animal?

a) Lizard

b) Frog

c) Sparrow

d) Snake

Answer: c) Sparrow

14. Which group of animals has a notochord present at some stage of life?

a) Mollusca

b) Arthropoda

c) Chordata

d) Annelida

Answer: c) Chordata

15. Which of these is an example of a bony fish?

a) Shark

b) Lamprey

c) Rohu

d) Skate

Answer: c) Rohu

16. Which class of vertebrates lays eggs in water?

a) Mammals

b) Amphibians

c) Reptiles

d) Birds

Answer: b) Amphibians

17. Which of the following animals is a reptile?

a) Frog

b) Turtle

c) Shark

d) Earthworm

Answer: b) Turtle

18. Which class of animals has the ability to fly?

a) Mammalia

b) Aves

c) Reptilia

d) Amphibia

Answer: b) Aves

19. Mammals are characterized by the presence of:

a) Scales

b) Feathers

c) Mammary glands

d) Gills

Answer: c) Mammary glands

20. Which of these is an example of a marsupial?

a) Kangaroo

b) Whale

c) Tiger

d) Elephant

Answer: a) Kangaroo

21. Which characteristic is found in amphibians?

a) Scales on the body

b) Cold-blooded nature

c) Four-chambered heart

d) External ears

Answer: b) Cold-blooded nature

22. Which of these is an echinoderm?

a) Earthworm

b) Starfish

c) Snail

d) Hydra

Answer: b) Starfish

23. Which of the following has an open circulatory system?

a) Fish

b) Amphibians

c) Arthropods

d) Mammals

Answer: c) Arthropods

24. Which of these is an example of an angiosperm?

a) Moss

b) Fern

c) Pine

d) Mango tree

Answer: d) Mango tree

25. Gymnosperms produce:

a) Flowers

b) Fruits

c) Naked seeds

d) Spores

Answer: c) Naked seeds

26. Which plant group is called "amphibians of the plant kingdom"?

a) Bryophytes

b) Pteridophytes

c) Gymnosperms

d) Angiosperms

Answer: a) Bryophytes

27. Which of these is an example of a pteridophyte?

a) Fern

b) Mango

c) Pinus

d) Spirogyra

Answer: a) Fern

28. The body of a sponge is made of:

a) Silica and calcium carbonate

b) Chitin

c) Cellulose

d) Keratin

Answer: a) Silica and calcium carbonate

29. Which animal has an endoskeleton made of cartilage?

a) Shark

b) Dolphin

c) Tuna

d) Lizard

Answer: a) Shark

30. Which phylum includes animals with a water vascular system?

a) Mollusca

b) Arthropoda

c) Echinodermata

d) Coelenterata

Answer: c) Echinodermata

31. Which of these is not a characteristic of birds?

a) Hollow bones

b) Three-chambered heart

c) Feathers

d) Beak without teeth

Answer: b) Three-chambered heart

32. Which of these animals has a three-chambered heart?

a) Crocodile

b) Lizard

c) Fish

d) Mammal

Answer: b) Lizard

33. Which phylum has animals with a segmented body?

a) Mollusca

b) Annelida

c) Arthropoda

d) Chordata

Answer: b) Annelida

34. The scientific name of a human is:

a) Homo erectus

b) Homo habilis

c) Homo sapiens

d) Homo neanderthalensis

Answer: c) Homo sapiens

35. The presence of a notochord is a characteristic of:

a) Non-chordates

b) Chordates

c) Arthropods

d) Mollusks

Answer: b) Chordates

36. Snails belong to which phylum?

a) Arthropoda

b) Mollusca

c) Annelida

d) Platyhelminthes

Answer: b) Mollusca

37. Amphibians have:

a) Gills only

b) Lungs only

c) Both gills and lungs

d) Trachea

Answer: c) Both gills and lungs

38. Which kingdom includes organisms that can be autotrophic or heterotrophic?

a) Monera

b) Protista

c) Fungi

d) Plantae

Answer: b) Protista

39. The most advanced group of plants is:

a) Bryophytes

b) Pteridophytes

c) Gymnosperms

d) Angiosperms

Answer: d) Angiosperms

40. Fungi reproduce by:

a) Budding

b) Spores

c) Binary fission

d) All of these

Answer: d) All of these