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FYBSc Course-I Semester-I MCQ : Levels of organization sudeshrathod
1. F.Y.B.Sc. Course-I, Semester-I
Multiple choice questions
F. Y. B. Sc. Course-I
Semester-I
B N Bandodkar College of Science, Thane
1. Platyhelminthes are
A. Multicellular, organ level organization
B. Unicellular organization
C. Multicellular organ-system level organization*
D. Multicellular level organization
2. Protozoans are
A. Multicellular, organ level organization
B. Unicellular organization*
C. Multicellular organ-system level organization
D. Multicellular level organization
3. Poriferans are
A. Multicellular, organ level organization
B. Unicellular organization
C. Multicellular organ-system level organization
D. Multicellular level organization only*
4. Coelenterates are
A. Multicellular, organ level organization
B. Unicellular organization
C. Multicellular tissue level organization*
D. Multicellular level organization
5. Arthropods are
A. Multicellular, organ level organization
B. Unicellular organization
C. Multicellular organ-system level organization*
D. Multicellular level organization
6. Molluscans are
A. Multicellular, organ level organization
B. Multicellular organ-system level organization*
C. Unicellular organization
D. Multicellular level organization
Prof. S. D. Rathod; [*indicates the answer] Page 1
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2. F.Y.B.Sc. Course-I, Semester-I
7. Volvox is
A. Multicellular organism
B. Monoflagellate protozoan organism
C. Monomorphic colonial organism*
D. Polymorphic colonial organism
8. Physalia is
A. Poriferan
B. Polymorphic colonial organism*
C. Monomorphic colonial organism
D. Belong to class Scyphozoa
9. Earthworm is
A. Pseudosegmented organism
B. Metamerically segmented organism*
C. Non-segmented organism
D. All of above
10. Tape worm is
A. Triploblastic organism*
B. Diploblastic organism
C. Metamerically segmented organism
D. Coelomate organism
11. Ascaris is
A. Pseudocoelomate organism*
B. Coelomate organism
C. Acoelomate organism
D. Diploblastic organism
12. Triploblasty means
A. Three germ layers*
B. Three types of cells
C. Triradiate symmetry
D. Three types of blastula
13. Metamerism involves
A. True coelome
B. Repetition of organs in each segment
C. True segmentation
D. All above*
14. Cephalization is observed in
A. Lower sluggish animals
B. Higher agile animals*
C. Primitive agile animals
D. Primitive sluggish animals
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3. F.Y.B.Sc. Course-I, Semester-I
15. Protozoans are
A. Multicellular organisms
B. Nonliving organisms
C. Unicellular organisms*
D. Prokaryotes
16. Conjugation is characteristic of
A. Class- Sporozoa
B. Class- Ciliophora*
C. Class- Flagellata
D. Class- Rhizopoda
17. Pseudopodia are characteristic of
A. Class- Sporozoa
B. Class- Ciliophora
C. Class- Flagellata
D. Class- Rhizopoda*
18. Autotrophic feeding occurs in
A. Class- Sporozoa
B. Class- Ciliophora
C. Class- Flagellata*
D. Class- Rhizopoda
19. Saprophytic condition predominantly occurs in
A. Class- Sporozoa*
B. Class- Ciliophora
C. Class- Flagellata
D. Class- Rhizopoda
20. Phylum - Porifera is characterized by
A. Canal system*
B. Multicellularity
C. Radial symmetry
D. All above
21. In Phylum - Porifera leuconoid canal system is a higher grade canal system occurs in
A. Class – Calcaria
B. Class - Hexactinellida
C. Class – Demospongia*
D. All above
22. In Phylum - Porifera spongine fibres are observed in
A. Class - Calcaria
B. Class - Hexactinellida
C. Class – Demospongia*
D. All above
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4. F.Y.B.Sc. Course-I, Semester-I
23. In Phylum - Porifera asconoid canal system is seen in only
A. Class – Calcaria*
B. Class - Hexactinellida
C. Class - Demospongia
D. Non of above
24. In Phylum – Porifera hexactinate spicules are characteristic of
A. Class – Calcaria
B. Class – Hexactinellida*
C. Class - Demospongia
D. Non of above
25. Gemmules are found in
A. Phylum Protozoa
B. Phylum Porifera*
C. Phylum Coelenterata
D. Phylum Arthropoda
26. Ephyra larva is observed in Phylum
A. Protozoa
B. Porifera
C. Coelenterata*
D. Aschelminthes
27. Corals belong to class
A. Calcaria
B. Hydrozoa
C. Scyphozoa
D. Anthozoa*
28. In Coelenterates medusoid form is dominant in class
A. Hydrozoa
B. Scyphozoa*
C. Anthozoa
D. All above
29. In Phylum Coelenterata the stomach pouches containing horseshoe shaped gonads are
found only in class
A. Hydrozoa
B. Scyphozoa*
C. Anthozoa
D. Not at all
30. Members of Phylum Coelenterata are characterized by
A. Diploblasty
B. Radial symmetry
C. Gastro-vascular cavity
D. All above*
Prof. S. D. Rathod; [*indicates the answer] Page 4
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5. F.Y.B.Sc. Course-I, Semester-I
31. Obelia is
A. Fresh water organism
B. Marine organism*
C. Terrestrial organism
D. Arboreal organism
32. Trochophore larva is found in
A. Phylum Aschelminthes
B. Phylum Annelida*
C. Phylum Porifera
D. Phylum Arthropoda
33. Aschelminthes worms are
A. Segmented, flattened, acoelomate and radially symmetrical
B. Segmented, cylindrical, coelomate and bilaterally symmetrical
C. Non-segmented, cylindrical, Pseudo-coelomate and bilaterally symmetrical*
D. Non-segmented, flattened, pseudo-coelomate and radially symmetrical
34. Annelids are
A. Coelomate*
B. Radially symmetrical
C. Pseudo-coelomate
D. Diploblastic
35. Arthropods are
A. Triploblastic, pseudo-coelomate and bilaterally symmetrical
B. Diploblastic, coelomate and bilaterally symmetrical
C. Triploblastic, coelomate and radially symmetrical
D. Triploblastic, coelomate and bilaterally symmetrical*
36. Platyhelminths are
A. Triploblastic, acoelomate and bilaterally symmetrical*
B. Diploblastic, coelomate and bilaterally symmetrical
C. Triploblastic, pseudo-coelomate and radially symmetrical
D. Triploblastic, coelomate and bilaterally symmetrical
37. Radial symmetry is observed in
A. Phylum – Annelida
B. Phylum – Arthropoda
C. Phylum – Porifera*
D. Phylum – Aschelminthes
38. Higher organisms are characterized by
A. Bilateral symmetry*
B. Radial symmetry
C. Diploblasty
D. Food vacuoles
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6. F.Y.B.Sc. Course-I, Semester-I
39. Respiratory organ like spiracle is commonly seen in one of the following class from
Phylum Arthropoda
A. Class - Crustacea
B. Class – Insecta*
C. Class - Arachnida
D. Class - Myriapoda
40. Parapodia are characteristic of
A. Class – Polychaeta*
B. Class - Oligochaeta
C. Class - Hirudinea
D. Class - Trematoda
41. Naupilus larva is observed in the life cycle of
A. Class – Crustacea*
B. Class - Insecta
C. Class - Arachnida
D. Class - Myriapoda
42. Which of the following class of Phylum Arthropoda contains organisms having three pairs
of thoracic legs
A. Hirudinea
B. Trematoda
C. Crustacea
D. Insecta*
43. Which of the following class of Phylum Arthropoda contains organisms having Four pairs
of legs
A. Crustacea
B. Insecta
C. Arachnida*
D. Myriapoda
44. Which of the following class of Phylum Arthropoda contains organisms having
cephalothorax
A. Crustacea*
B. Insecta
C. Arachnida
D. Myriapoda
45. Liver fluke belongs to class
A. Nematoda
B. Turbellaria
C. Trematoda*
D. Cestoda
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7. F.Y.B.Sc. Course-I, Semester-I
46. Earthworm Pheretima posthuma is
A. diploblastic
B. parasitic
C. unisexual
D. hermaphrodite*
47. Euplectella belongs to class
A. Hydrozoa
B. Calcaria
C. Hexactinellida*
D. Demospongia
48. Paramecium belongs to class
A. Rhizopoda
B. Flagellata
C. Sporozoa
D. Ciliophora*
49. Nereis belongs to class
A. Polychaeta*
B. Oligochaeta
C. Hirudinia
D. Turbellaria
50. Ascending order of canal systems in sponges is as
A. leuconoid—asconoid—syconoid
B. syconoid—leuconoid—asconoid
C. asconoid—leuconoid—syconoid
D. asconoid—syconoid—Leuconoid*
51. Ascending order of coelomic condition in Triploblastic organisms is
A. Pseudocoelomate—coelomate—acoelomate
B. Acoelomate—coelomate—pseudocoelomate
C. Coelomate—pseudocoelomate—acoelomate
D. Acoelomate—pseudocoelomate—coelomate*
*Indicates the answer
Prof. S. D. Rathod; [*indicates the answer] Page 7
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