MCQ Questions for Class 9 Science: Ch 7 Diversity in Living Organisms

MCQ Questions for Class 9 Science: Ch 7 Diversity in Living Organisms

1. Which among the following is a common feature of chrodates?
(a) Presence of notochord
(b) Presence of triploblastic condition
(c) Presence of coelom
(d) Presence of gill pouches
► (a) Presence of notochord

2. Which of the following organism is not triploblastic?
(a) Tapeworm
(b) Roundworm
(c) Jellyfish
(d) Liverfluke
► (c) Jellyfish

3. Who proposed artificial system of classification
(a) John Ray
(b) Lamarck
(c) Linnaeus
(d) Wallace
► (c) Linnaeus

4. Corals are  
(a) Poriferans attached to some solid support
(b) Cnidarians, that are solitary living
(c) Poriferans present at the sea bed    
(d) Cnidarians that live in colonies
► (d) Cnidarians that live in colonies

5. Sound producing organ in birds is :-
(a) Trachea
(b) Pneumatic bones
(c) Syrinx
(d) Plumage
► (c) Syrinx

6. In which phylum pseudocoelom is present ?
(a) Coelenterata
(b) Annelida
(c) Aschelminthes
(d) Mollusca
► (c) Aschelminthes

7. Which of the following is not a feature of flatworms?
(a) Bilateral symmetry
(b) Pseudocoelomate
(c) Dorsiventrally flattened
(d) Triploblastic
► (b) Pseudocoelomate

8. Which of the following organism shows the presence of jointed appendages?
(a) Pila
(b) Spider
(c) Sea-cucumber
(d) Chiton
► (b) Spider

9. Which of the following is a member of Phylum Echinodermata?
(a) Lionfish
(b) Starfish
(c) Jellyfish
(d) Sawfish
► (b) Starfish

10. One of the following is not an Annelid.
(a) Nereis    
(b) Earthworm    
(c) Leech    
(d) Urchins
► (d) Urchins

11. Who classified animals according to their habitat (air, water or land)?
(a) Socrates
(b) Aristotle
(c) Linnaeus
(d) Plato
► (b) Aristotle

12. Meena and Hari observed an animal in their garden. Hari called it an insect while Meena said it was an earthworm. Choose the character from the following which confirms that it is an insect.
(a) Bilateral symmetrical body 
(b) Body with Joint leg
(c) Cylindrical body
(d) Body with little segmentation
► (b) Body with Joint leg

13. Which of the following is not a bony fish ?
(a) Labeo rohita
(b) Anabas
(c) Hippocampus
(d) Chimera
► (d) Chimera

14. On the basis of origin of mouth, animals have been categorized into
(a) Deuterostomia and protozoa
(b) Protostomia and deuterostomia
(c) Protozoa and metazoa
(d) Protostomia and metazoa
► (b) Protostomia and deuterostomia

15. Canal system is present in phylum:
(a) Porifera
(b) Cnidaria
(c) Echinodermata
(d) Protozoa
► (a) Porifera

16. Skin is kept moist in earthworms. It helps in
(a) Locomotion
(b) Respiration
(c) Protection
(d) Both (a) and (b)
► (b) Respiration

17. Earthworm has an unsegmented band called :
(a) Clitellum
(b) Cephalothorax
(c) Thorax
(d) Metathorax
► (a) Clitellum

18. Which of the following is not the characteristic of animals?
(a) Eukaryotic
(b) Heterotrophic
(c) Multicellular
(d) Photosynthetic
► (d) Photosynthetic

19. The locomotory organs of Echinodermata are
(a) tube feet
(b) muscular feet
(c) jointed legs
(d) parapodia
► (a) tube feet

20. How many germ layers are present in the embryo of a highly advanced animal?
(a) 1
(b) 2
(c) 4
(d) 3
► (d) 3

21. Which phylum has a reduced coelomic cavity?
(a) Phylum Nematoda
(b) Phylum Echinodermata
(c) Phylum Arthropoda
(d) Phylum Mollusca
► (d) Phylum Mollusca

22. The first wall layer of cell is :-
(a) Tertiary wall, if present
(b) Secondary wall
(c) Primary wall
(d) Middle lamella, if present
► (c) Primary wall

23. Animals having identical right and left sides are also known as
(a) Radially symmetrical
(b) Bilaterally symmetrical
(c) Laterally symmetrical
(d) Asymmetrical
► (b) Bilaterally symmetrical

24. Which of the following is incorrectly matched ?
(a) Porifera - Sycon
(b) Coelenterata - Hydra
(c) Platyhelminthes - Fasciola
(d) Nematoda - Taenia solium
► (d) Nematoda - Taenia solium

25. Organ system grade of body organization is found in :-
(a) Sponges
(b) Protozoa
(c) Arthropodes
(d) Platyhelminthes
► (c) Arthropodes

26. Which of the following phyla posesses radial symmetry?
(a) Phylum Coelenterata
(b) Phylum Platyhelminthes
(c) Phylum Nematoda
(d) Phylum Annelida
► (a) Phylum Coelenterata

27. Binomial system of nomenclature means that every organism has:
(a) a name given by two scientists
(b) one scientific name consisting of a generic name and a specific name
(c) one scientific name and one popular name
(d) a number in an international catalogue by which an organism is identified
► (b) one scientific name consisting of a generic name and a specific name

28. Stinging cell organelles - nematocysts are found only in:
(a) Phylum - Coelenterata
(b) Phylum - Porifera
(c) Phylum - Echinodermata
(d) Phylum - Arthropoda
► (a) Phylum - Coelenterata

29. In which class birds are included ?
(a) Amphibia
(b) Pisces
(c) Reptilia
(d) Aves
► (d) Aves

30. Which of the following have cells that are properly arranged into tissues and organs?
(a) Parazoa
(b) Fungi
(c) Monera
(d) Eumetazoa
► (d) Eumetazoa

31. In Whiitaker’s classification, unicellular eukaryotic organisms are grouped under
(a) Protozoa
(b) Porifera
(c) Fungi
(d) Protista
► (d) Protista

32. Pteridophyta do not have  
(a) root
(b) stem
(c) flowers
(d) leaves
► (c) flowers

33. Which of the following is a diploblastic organism?
(a) Tapeworm
(b) Sea anemone
(c) Earthworm
(d) Planaria
► (b) Sea anemone

34. Balanoglossus is an example of:
(a) Urochordata
(b) Cephalochordata
(c) Protochordata
(d) Vertebrata
► (c) Protochordata

35. Mosquito belongs to the phylum
(a) Mollusca
(b) Chordate
(c) Arthropod
(d) Annelid
► (c) Arthropod

36. In Earthworm the body is divisible into :
(a) 30-35 segments
(b) 70-75 segments
(c) 90-100 segments
(d) 100-120 segments
► (d) 100-120 segments

37. The correct order of the biological hierarchy from Kingdom to Species is
(a) Kingdom, Phylum, Order, Family, Class, Genus, Species
(b) Kingdom, Phylum, Class, Order, Family, Genus, Species
(c) Kingdom, Class, Family, Order, Phylum, Genus, Species​
(d) Kingdom, Class, Order, Phylum, Family, Genus, Species
► (b) Kingdom, Phylum, Class, Order, Family, Genus, Species

38. Well defined nucleus is absent in 
(a) blue green algae
(b) diatoms    
(c) algae    
(d) yeast
► (a) blue green algae
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