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