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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.
| 51. |
Supporting lamella of Hydra isA. MesogloeaB. GastrodermisC. EpidermisD. None of the above. |
| Answer» Correct Answer - A | |
| 52. |
Hydra is immortal, becauseA. Old cells are replaced by new cellsB. Cell do not grow oldC. Of regenerationD. It never dies. |
| Answer» Correct Answer - A | |
| 53. |
Epitheleomuscular cells of epidermis of Hydra formA. Circular musclesB. Oblique musclesC. Longitudinal musclesD. None of the above. |
| Answer» Correct Answer - C | |
| 54. |
The body of Hydra contracts with the help ofA. Epitheliomuscular cellsB. Endotheliomuscular cellsC. Sensory cellsD. Glandulo-muscular cells. |
| Answer» Correct Answer - A | |
| 55. |
A colonial hydrozoan isA. HydraB. MetridiumC. AureliaD. Obelia. |
| Answer» Correct Answer - D | |
| 56. |
Hydra contracts its body by means ofA. Interstitial cellsB. CnidoblastsC. Nutritive cellsD. Epithelio-muscular cells. |
| Answer» Correct Answer - D | |
| 57. |
Sea Anemone is member of classA. HydrozoaB. ScyphozoaC. Anthozoa/ActinozoaD. None of the above. |
| Answer» Correct Answer - C | |
| 58. |
Metagenesis is found inA. HydraB. ObeliaC. AureliaD. Tubipora |
| Answer» Correct Answer - B | |
| 59. |
Contractile structure of nematoblast isA. LessoB. CnidocilC. TubeD. Refractive rods |
| Answer» Correct Answer - A | |
| 60. |
Zoochlorellae or Zooxanthellae of coloured Hydra occur inA. Epithelio-muscular cellsB. Nutritive cellsC. MesogloeaD. Interstitial cells. |
| Answer» Correct Answer - B | |
| 61. |
Sensory cells of Hydra possessA. FlagellumB. Hair-like processesC. CiliaD. Pseudopodia. |
| Answer» Correct Answer - B | |
| 62. |
Sensory structure of a cnidoblast isA. CnidocilB. Refractile rodsC. MyonemesD. Operculum. |
| Answer» Correct Answer - A | |
| 63. |
The smallest cnidoblast in the body of Hydra isA. PenetrantB. VolventC. Atrichous isorhizaD. Holotrichous isorhiza. |
| Answer» Correct Answer - C | |
| 64. |
Nematocyst is aA. CellB. Group of cellC. OrganD. Part of a cell. |
| Answer» Correct Answer - D | |
| 65. |
Tentacles of Obelia areA. HollowB. SolidC. Internally chamberedD. Spiny and hollow. |
| Answer» Correct Answer - B | |
| 66. |
Number of tentacles in a polyp of Obelia isA. `5-10`B. `10-15`C. `15-20`D. `20-30` |
| Answer» Correct Answer - D | |
| 67. |
Aurelia hasA. Two smooth oral armsB. Two nematoblast rich oral armsC. Four tentaclesD. Four cnidoblast rich oral arms. |
| Answer» Correct Answer - D | |
| 68. |
Cell-tissue organisation occurs inA. AmoebaB. HydraC. TapewormD. Ascaris. |
| Answer» Correct Answer - B | |
| 69. |
Most appropriate term for the life cycle of Obelia isA. Alternation of generationsB. MetagenesisC. MetamorphosisD. Neoteny. |
| Answer» Correct Answer - B | |
| 70. |
Coelenterates are mostlyA. AsymmetricalB. Radially symmetricalC. Bilaterally symmetricalD. Irregular. |
| Answer» Correct Answer - B | |
| 71. |
Germ cells of Hydra are derived fromA. EctodermB. EndodermC. MesodermD. Mesogloea |
| Answer» Correct Answer - A | |
| 72. |
Statocysts are sense organs ofA. ParameciumB. AscarisC. Medusa of ObeliaD. Taenia solium. |
| Answer» Correct Answer - C | |
| 73. |
Sense organs of Aurelia areA. TentillaB. TentaculocystC. NematocystD. Otolith. |
| Answer» Correct Answer - B | |
| 74. |
In Hydra new nematocysts develop fromA. CnidocilsB. Glandular cellsC. Germ cellsD. Inerstitial cells. |
| Answer» Correct Answer - D | |
| 75. |
Budding is a normal mode of asexual reproduction inA. Starfish and HydraB. Hydra and spongesC. Tapeworm and HydraD. Sponge and starfish. |
| Answer» Correct Answer - B | |
| 76. |
Asexual reproduction in Hydra occurs throughA. BuddingB. Binary fissionC. FragmentationD. Sporulation. |
| Answer» Correct Answer - A | |
| 77. |
Match the following and choose the correct option `{:("(i) Physalia A. Sea anemone"),("(ii) Meandrina B. Brain coral"),("(iii) Gorgonia C. Sea fan"),("(iv) Adamsia D. Portuguese man of war"):}`A. i-d, ii-b, iii-c, iv-aB. i-c, ii-b, iii-b, iv-aC. i-d, ii-c, iii-a, iv-aD. i-b, ii-c, iii-a, iv-d |
| Answer» Correct Answer - D | |
| 78. |
Budding method of asexual reproduction occurs inA. AmoebaB. PlasmodiumC. ParamoeciumD. Hydra. |
| Answer» Correct Answer - D | |
| 79. |
Nematocysts occur inA. CtenophoraB. PlanariaC. FasciolaD. Obelia. |
| Answer» Correct Answer - D | |
| 80. |
Tentacles of Hydra appear to beA. 12B. 15C. 8D. 14 |
| Answer» Correct Answer - C | |
| 81. |
One of the following is a coelenterateA. Sea FanB. Sea DollarC. Sea CucumberD. Sea Horse. |
| Answer» Correct Answer - A | |
| 82. |
Digestion in Hydra isA. IntercellularB. IntracellularC. BothD. None. |
| Answer» Correct Answer - C | |
| 83. |
Digestion in the enteron of Hydra starts withA. Proteolytic enzymesB. Amyloltyic enzymesC. Lipolytic enzymesD. None of the above. |
| Answer» Correct Answer - A | |
| 84. |
Hydra does not feed on lower animals becauseA. They are so smallB. They are distastefulC. They leck glutathioneD. None of the above. |
| Answer» Correct Answer - C | |
| 85. |
Undigested food of Hydra is expelled fromA. MouthB. AnusC. General surfaceD. Hypostome. |
| Answer» Correct Answer - A | |
| 86. |
Mesogloea of Hydra containsA. Nerve cellsB. Phagocytic cellsC. Interstitial cellsD. None of the above. |
| Answer» Correct Answer - D | |
| 87. |
Cnidom is aA. Battery of a nematoblastsB. Group of nematoblastsC. Armed threadD. Unarmed thread. |
| Answer» Correct Answer - B | |
| 88. |
Larva of Hydra isA. aurelyaB. PlanulaC. TadpoleD. Hydrula. |
| Answer» Correct Answer - A | |