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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Siphonozoids of Pennatula differ from autozooids inA. Having tentacles and gonadsB. Lacking mesenteriesC. Lacking tentacles and gonadsD. Having mesenteries. |
| Answer» Correct Answer - C | |
| 2. |
Anthocodia isA. Medusoid zooidB. Polypoid zooidC. Whole zooidD. Distal part of zooid with mouth and tentacles. |
| Answer» Correct Answer - D | |
| 3. |
Coral Islands areA. LaccadivesB. SrilankaC. IcelandD. Mumbai. |
| Answer» Correct Answer - A | |
| 4. |
Which one has a tree-like branched from?A. PennatulaB. GorgoniaC. PhysaliaD. Porpita. |
| Answer» Correct Answer - B | |
| 5. |
Coral islands areA. FijiB. MaldivesC. LaccadivesD. All the above. |
| Answer» Correct Answer - D | |
| 6. |
Great Barrier Reef of Australia isA. 1000 km longB. 2300 km longC. 2400 km longD. 3600 km long. |
| Answer» Correct Answer - B | |
| 7. |
Great Barrier Reef occurs off the coast ofA. Sri LankaB. PhilippinesC. AustraliaD. Magarashtra. |
| Answer» Correct Answer - C | |
| 8. |
Coral reef is formed ofA. Siliceous matterB. LimestoneC. ChitinD. Lava. |
| Answer» Correct Answer - B | |
| 9. |
Tentacles of Hydra areA. HollowB. SolidC. Half hollow and half solidD. None of the above. |
| Answer» Correct Answer - A | |
| 10. |
The number of tentacles in Hydra is calledA. 6 to 10B. 10 to 16C. 16 to 20D. 20 to 26 |
| Answer» Correct Answer - A | |
| 11. |
What is present in mesoglea of ctenophores which make it a loose layer of cells?A. AmoebocytesB. Elastic cellsC. Nerve cells and muscle cellsD. All the above. |
| Answer» Correct Answer - D | |
| 12. |
Intermediate between diploblastic and triploblastic body structure is found inA. PorifersB. CoelenteratesC. CtenophoresD. Platyhelminthes. |
| Answer» Correct Answer - C | |
| 13. |
What will happen if the cnidocil is touched with a glass rod?A. Nematoblasts will be dischargedB. Nematoblasts will not dischargeC. Nematoblasts will dieD. None of the above. |
| Answer» Correct Answer - A | |
| 14. |
Nematoblasts in Hydra are commonly ofA. 2 typesB. 3 typesC. Four typesD. None of the above. |
| Answer» Correct Answer - C | |
| 15. |
Nematoblasts responsible for locomotion areA. PenetrantsB. VolventsC. GlutinantsD. None of the above. |
| Answer» Correct Answer - C | |
| 16. |
In Physalia, nematoblasts paralyse the prey byA. HaemotoxinB. NeurotoxinC. MyotoxinD. Both B and C. |
| Answer» Correct Answer - B | |
| 17. |
Which nematoblasts coil around the prey?A. PenetrantsB. VolventsC. Small glutinantsD. Large glutinants. |
| Answer» Correct Answer - B | |
| 18. |
Nematoblasts with blind thread tube is calledA. StenoteleB. DesmonemeC. Stereoline glutinantD. Streptoline glutinant |
| Answer» Correct Answer - B | |
| 19. |
The largest nematoblast isA. StenoteleB. DesmonemeC. Small glutinantD. Large glutinant. |
| Answer» Correct Answer - A | |
| 20. |
Coelenterate without medusoid stage in life cycle isA. ObeliaB. AureliaC. PhysaliaD. Metridium. |
| Answer» Correct Answer - D | |
| 21. |
Growth zone of Hydra isA. DiffusedB. Near the footC. Below hypostomeD. In the middle. |
| Answer» Correct Answer - C | |
| 22. |
Corals are generallyA. SolitaryB. ColonialC. StonelyD. Both B and C. |
| Answer» Correct Answer - D | |
| 23. |
In corals, the gonads areA. EndodermalB. EctodermalC. Mesodermal.D. Mesogloeal. |
| Answer» Correct Answer - A | |
| 24. |
Gonads are endodermal inA. HydraB. ObeliaC. PhysaliaD. Aurelia. |
| Answer» Correct Answer - D | |
| 25. |
Colour of Brown Hydra is due toA. ChromoplastsB. ZooxanthellaeC. ZoochlorellaeD. Both A and B. |
| Answer» Correct Answer - B | |
| 26. |
Brown Hydra isA. Hydra vulgarisB. Hydra viridisC. Hydra fuscaD. Hydra gangeticus. |
| Answer» Correct Answer - C | |
| 27. |
Glutathione isA. ProteinB. TripeptideC. PolysaccharideD. Trisaccharide. |
| Answer» Correct Answer - B | |
| 28. |
Coelenterates areA. UreotelicB. UricotelicC. AmmonotelicD. None of the above. |
| Answer» Correct Answer - C | |
| 29. |
Nerve cells of coelenterates isA. ApolarB. UnipolarC. BipolarD. Multipolar. |
| Answer» Correct Answer - A | |
| 30. |
Exoskeleton of coelenterates isA. SiliceousB. ChitinousC. CalcareousD. Both B and C. |
| Answer» Correct Answer - D | |
| 31. |
The term coelenterate was coined byA. LinnaeusB. LeuckartC. ClarkD. Grant. |
| Answer» Correct Answer - B | |
| 32. |
Skeleton present in coelenterates isA. EndoskeletonB. ExoskeletonC. Both A and BD. None of the above. |
| Answer» Correct Answer - D | |
| 33. |
Which one is polymorphic coelenterate?A. ObeliaB. HydraC. AureliaD. Adamsia. |
| Answer» Correct Answer - A | |
| 34. |
Hermit Carb develops a beneficial association withA. AdamsiaB. AureliaC. GorgoniaD. Pennatula. |
| Answer» Correct Answer - A | |
| 35. |
Jelly Fish isA. AdamsiaB. AureliaC. ScoliodonD. Torpedo. |
| Answer» Correct Answer - B | |
| 36. |
Crest or sail of float in Physalia is differently coloured. It isA. YellowB. CrimsonC. VioletD. Black. |
| Answer» Correct Answer - C | |
| 37. |
A cormidium of Physalia consists ofA. TentaclesB. ZooidsC. Both A and BD. Tentacles, zooids and pneumatophore. |
| Answer» Correct Answer - C | |
| 38. |
In Pysalia, zooids occur in groups calledA. ConulaeB. PalponsC. CormidiaD. Dactyloids. |
| Answer» Correct Answer - C | |
| 39. |
Reproductive zooids of Physalia areA. MedusaeB. CormidiaC. GastrozooidsD. Gonophores. |
| Answer» Correct Answer - D | |
| 40. |
Pneumatophore is present inA. HydraB. ObeliaC. AureliaD. Physalia. |
| Answer» Correct Answer - D | |
| 41. |
Polyps of Obelia areA. Reproductive zooidsB. Nutritive zooidsC. Zooids meant for dispersalD. All of above. |
| Answer» Correct Answer - B | |
| 42. |
Blastostyle of Obelia bearsA. TentaclesB. PolypsC. MedusaeD. Gonads. |
| Answer» Correct Answer - C | |
| 43. |
Chitinous covering or perisarc is present inA. ObeliaB. HydraC. AureliaD. Physalia. |
| Answer» Correct Answer - A | |
| 44. |
Gas gland occurs inA. GorgoniaB. PhysalisC. PennatulaD. Red Coral. |
| Answer» Correct Answer - B | |
| 45. |
A coral island with a central shollow lake is known asA. Coral reefB. LagoonC. AtollD. Corallite |
| Answer» Correct Answer - C | |
| 46. |
The mesolamella/mesogloea is formed byA. EpidermisB. GastrodermisC. Epidermis and gastrodermisD. Mesoderm. |
| Answer» Correct Answer - C | |
| 47. |
Hydra can digest all types of food exceptA. ProteinsB. FatsC. StarchesD. None of the above. |
| Answer» Correct Answer - C | |
| 48. |
Polymorphic animal isA. PhysaliaB. HydraC. TubiporaD. Metridium. |
| Answer» Correct Answer - A | |
| 49. |
Which part of Hydra is without namatoblasts ?A. Pedal discB. TentaclesC. ManubriumD. Stomach region. |
| Answer» Correct Answer - A | |
| 50. |
Which part of Hydra is without supporting lamella?A. Basal discB. Central part of pedal discC. TentaclesD. None of the above. |
| Answer» Correct Answer - B | |