InterviewSolution
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InterviewSolution
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.
| 251. |
Most mollusc areA. TerrestrialB. Fresh waterC. MarineD. None of these |
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Answer» Correct Answer - C Monotremes is a group showing peculiar characteristics as a mixture to reptilian and mammalian features |
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| 252. |
Vascular mass undergo torision inA. GastropodaB. CephalopodaC. PalacopodaD. None of these |
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Answer» Correct Answer - A Most unique character of mammalian brain is presence of corpus callosum it connect the two cerebral hemispheres internally |
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| 253. |
In life history of liver fluke are present (1) Cercaria (2) Metacercaria (3) Sporcyst (4) Redia (5) Miracidium. What is their proper sequenceA. `21354`B. `53412`C. `54213`D. `54312` |
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Answer» Correct Answer - B (b) Different larval stage of liver fluke are found in following sequence. Miracidium rarr Sporocyst rarr Redia rarr Cercaria rarr metacercaria |
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| 254. |
Alimentary canal is absent inA. Taenia and SchistosomaB. Ascaris and FasciolaC. Taenia and EchinococcusD. Tricuris and Fasciola |
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Answer» Correct Answer - C (c) Taenia solium (Tape worm) and Echinococcus (Dog Tapeworm) are endoparasite. They obtain their food from host through body surface. So lacks alimentary canal. |
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| 255. |
The elephant tusk shell isA. DentaliumB. NautilusC. LimaxD. Octopus |
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Answer» Correct Answer - A Kangaroo (Macropus) found in Australian region which is belong to the order marsupilia or metatheria |
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| 256. |
Assertion: Platyhelminthes are generally hermaphrodites. Reason: In Platyhelminthes, fertilisation is internal.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - b Platyhelminthes are generally hermaphrodites, i.e., both the sexes are present in one organism. They show internal and cross fertilisation where male gametes of one organism fertilise female gametes of another organism. |
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| 257. |
When body cavity is not lined by mesoderm, instead, the mesoderm s present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is calledA. CoelomB. True coelomC. PseudocoelomD. Acoelom |
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Answer» Correct Answer - C When body cavity is not lined by mesoderm, instead the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is called pseudocoelom. |
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| 258. |
Assertion:Aschelminthes are called as pseudo-coelomates. Reason : In Aschelminthes, mesoderm is present as scattered pouches in between ectoderm and endoderm.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - a In Aschelminthes, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Hence, they are called pseudocoelomates. |
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| 259. |
Tube feet are the locomotory organs inA. star fishB. jelly fishC. silver fishD. Scoliodon |
| Answer» Correct Answer - A | |
| 260. |
A common characteristic of all vertebrates without exception isA. The division of body into head, neck, trunk and tailB. Their body covered with an exoskeletonC. The possession of two pairs of functional appendagesD. The presence of well-developed skull |
| Answer» Correct Answer - D | |
| 261. |
A common characteristic of all vertebrates without exception isA. the division of body into head, neck, trunk and tialB. their body covered with an exoskeletonC. the possession of two pairs of functional appendagesD. the presence of well-developed skull. |
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Answer» Correct Answer - D Vertebrates belong to the subphylum Vertebrata of the Phylum Chordata. All vertebrates share a common diagnostic character, the elaboration of anterior skeletal elements into a "cranium" or "skull" which houses various sense organs and a complex brain. The distinctive vertebrate cranium and brain evolved even before the vertebral column and are, therefore, more fundamental characteristic of vertebrates than the backbone. |
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| 262. |
Neoteny is found inA. TadpoleB. SalamanderC. HylaD. Axolotl |
| Answer» Correct Answer - D | |
| 263. |
Echinoderms are headless, brainless and hearless, Yet they are placed at the top of invertebrates because of presence ofA. EnterocoelB. Exclusive marine formsC. High power of regenerationD. Great power of reproduction |
| Answer» Correct Answer - A | |
| 264. |
Tube feet are the characteristic structures ofA. JellyfishB. CuttlefishC. Starfish(Echinodermata)D. Crayfish |
| Answer» Correct Answer - C | |
| 265. |
The presence of tube feet is a characteristic feature fo the phylumA. Arthropoda.B. annelidaC. nemathelminthesD. echinodermata |
| Answer» Correct Answer - d | |
| 266. |
Tue feet are the characteristic structures ofA. Star fishB. Jelly fishC. Devil fishD. Cuttle fish |
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Answer» Correct Answer - A Star fish |
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| 267. |
The presence of tube feet is the characteristic feature of phylumA. AnnelidaB. MolluscaC. ArthropodaD. Echinodermata |
| Answer» Correct Answer - D | |
| 268. |
The presence of tube feet is the characteristic feature of phylumA. ArthropodaB. Annelida-hirudinea-silver fishC. NematheminithesD. Exhinodermata |
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Answer» Correct Answer - D In whale Retea mirabilia are present which store extra oxygen and help the animal to remain under water for some time |
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| 269. |
Which one of the following is an example of platyhelminthesA. PlasmodiumB. SchistosomaC. TrypanosomaD. Wuchereria |
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Answer» Correct Answer - B Schistosoma |
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| 270. |
Tube feet are the characteristic structures ofA. Star fishB. Jelly fishC. Cray fishD. Cuttle fish |
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Answer» Correct Answer - A Star fish |
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| 271. |
Among the following organisms point out a completely non-parasitic formA. Sea anemoneB. LeechC. TapewormD. Mosquito |
| Answer» Correct Answer - A | |
| 272. |
Among the following organisms point out a completely non-parasitic formA. Tape wormB. MosquitoC. Sea anemoneD. Leech |
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Answer» Correct Answer - C Mosquito |
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| 273. |
Which of the following causes parasitic castration of crabA. SacculinaB. AdamsiaC. SpongillaD. None of these |
| Answer» Correct Answer - A | |
| 274. |
Among the following organisms which is a completely non-parasitic form?A. Sea anemoneB. TapewormC. LeechD. Mosquito |
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Answer» Correct Answer - A Sea anemone is not parasitic. It shows mutualism with hermit crab. Tapeworm is an endoparasite while leech and mosquito are exoparasites. |
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| 275. |
Which of the following are correct for axolotl larva? (i) it shows neoteny an dpaedogenesis (ii) absence of thyroxine affect metamorphosis (iii) it is the larva ofhemichordataA. (i) , (ii) and (iii)B. (i) and (ii)C. (ii) and (iii)D. (iii) |
| Answer» Correct Answer - b | |
| 276. |
Which one of the following is not a correct pairA. Trochophore-AnnelidaB. Bipinnaria-EchinodermataC. Tornaria-ArthropodaD. Planula-Coelenterata |
| Answer» Correct Answer - C | |
| 277. |
What distinguishes an insect from curstaceanA. Number of eyesB. Arrangment of nerve cordsC. Number of appendagesD. Presence of wings |
| Answer» Correct Answer - C | |
| 278. |
Crustacean fishery involvesA. Lobster and PrawnB. Shells of Cuttle fishC. Mussels and SquidsD. Oysters and Crab |
| Answer» Correct Answer - A | |
| 279. |
Match the column A with column B and choose the correct option Column A Column B A. Porifera i. Canal system B. Archelminthes ii. Water-vascular system C. Annelida iii. Muscular Pharynx, Comb plates D. Arthropoda vi. Jointed appendages E. Echnodermata v. MetameresA. A-ii,B-iii,C-v,D-iv,E-iB. A-ii,B-v,C-iii,D-iv,E-iC. A-I,B-iii,C-v,D-iv,E-iiD. A-I,B-v,C-iii,D-iv,E-ii |
| Answer» Correct Answer - c | |
| 280. |
In the most simple type of canal system of Porifera, which of the following ways exhibit water flow?A. Ostia `rarr` Spongocoel `rarr` Osculum `rarr` ExteriorB. Spongocoel `rarr` Ostia `rarr` Osculum `rarr` ExteriorC. Osculum `rarr` Spongocol `rarr` Ostia `rarr` ExteriorD. Osculum `rarr` Ostia `rarr` Spongocoel `rarr` Exterior |
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Answer» Correct Answer - A The central body cavity of sponges is called spongocoel. Their body is porus. The inhalent pores are called ostia and exhalent pores are known as oscula. The body of a sponge is organised in such manner as to form a complex system of pores and canals. This system is called canal sydstem. Water flows in through ostia to spongocoel and comes out to exterior via osculum. |
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| 281. |
Canal system in porifera is not concerned withA. RespirationB. NutritionC. Sexual reproductionD. None of these |
| Answer» Correct Answer - C | |
| 282. |
In most simple type of canal system of porifera, water flows through which one of the following waysA. Ostia rarr Spongocoel rarr Osculum rarr ExteriorB. Spongocoel rarr Ostia rarr Osculum rarr ExteriorC. Osculum rarr Spongocoel rarr Ostia rarr ExteriorD. Osculum rarr Ostia rarr Spongocoel rarr Exterior |
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Answer» Correct Answer - A (a) The course taken by water into the canal system is water form outside `underset("dermal ostia")overset("through")(rarr)` incurrent canals `underset("prosopyles")overset("through")(rarr)` radial canals `underset("apopyles") overset("through")(rarr)` spongocoel `underset("osculum")overset("through")(rarr)` outside. |
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| 283. |
Which of the following animals has tube- within-tube type of body plan evolved along deuterostomic evolutionary line ?A. AnnelidsB. ArthropodsC. EchinodermsD. Molluscs |
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Answer» Correct Answer - C Echinoderms |
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| 284. |
Internal asexual propagule of some fresh water sponges is or internal bud for overcoming unfavaourable conditions in leucosolenia isA. GemmuleB. PlanulaC. StereoblastulaD. Amphiblastula |
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Answer» Correct Answer - A (a) The gemmules are asexual reproductive bodies found in all fresh water and a few marine sponges they are formed as internal buds and protect the species during unfavourable conditions. |
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| 285. |
In Leucosolenia, digestion takes place in theA. Paragastric cavityB. StomachC. OsculumD. Food vacuole |
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Answer» Correct Answer - D (d) Food vacuole is transferred to amoebocytes and digestion is completed there. |
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| 286. |
The digestion of food in sponges isA. ExtracellularB. IntracellularC. Both intracellular & extracellularD. Absent |
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Answer» Correct Answer - B Intracellular |
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| 287. |
Digestion of food occurs in sponges Leucosolenia inA. SpongocoelB. Choanocytes followed by amoebocytesC. AmoebocytesD. Choanocytes |
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Answer» Correct Answer - B (b) Digestion of food takes place partially in choanocytes and partially in wandering amoebocytes. |
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| 288. |
The mode of digestion in sponges isA. IntracellularB. IntercellularC. Intracellular and intercullarD. None of these |
| Answer» Correct Answer - A | |
| 289. |
The most important characteristic of phylum Cnidaria isA. CnidoblastsB. ChoanocytesC. ThesocytesD. Archaeocytes |
| Answer» Correct Answer - A | |
| 290. |
In the absence of a closed vascular system, how do sponges manage to distribute the nutritive substances from choanocytes to rest of the cells ?A. Though cell -to- cell diffusionB. Through mesoglea which acts as the food reservoir and distribution systemC. Through the wandering cells, amoebocytesD. Through cell - to -cell diffusion and amoebocytes |
| Answer» Correct Answer - D | |
| 291. |
All flatworms differ from all round worms in havingA. Solid mesodermB. Triploblastic bodyC. Bilateral symmetryD. Metamorphosis in the life history |
| Answer» Correct Answer - A | |
| 292. |
The characteristics of a tapeworm are A- Large, quadrate scolex, without rostellum and hooks B- Primary host man, and secondary host cattle C- Length 5 to 10 metres. Identify the tapeworm:-A. Taenia soliumB. Taenia saginataC. EchinococcusD. Hymenolepsis nana |
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Answer» Correct Answer - B Taenia saginata |
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| 293. |
Read the following statement carefully. (a). Hooks and sucker are present in parasitic forms b. Some of them absorb nutrients from the host directly through their body surface. (c). Fertilisation is internal and development is through many larval stages. Here we are talking about:A. PlatyhelminthesB. AschelminthesC. AnnelidsD. Molluscs |
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Answer» Correct Answer - A * Hooks and uscker are present in parasitic forms. *. Some of them absorb nutrient from the host directly through their body surface. *. Fertilisation in internal and development is through many larval stages. |
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| 294. |
In flatworms, fertilisation occurs in theA. Surrounding waterB. Female genital tractC. Male genital tractD. Specialised flame cells |
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Answer» Correct Answer - B Female genital tract |
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| 295. |
The fertilisation is_____and development is______in sponges.A. External, indirectB. External, directC. Internal, indirectD. Internal, direct |
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Answer» Correct Answer - C Internal, indirect |
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| 296. |
Assertion: In flatworms, fertilisation is internal and development is through many larval stages. Reason: Some parasitic flatworms absorb nutrients from the host directly through their body surface.A. IF both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - B * In flatworm, fertilisation is internal and development is through many larval stages. * Some parasitic flatworm absorb nutrients from the host directly through their body surface. |
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| 297. |
Which of the following endoparasites of humans does show vivparityA. Enterobius vermicularisB. Trichinella spiralisC. Ascaris lumbricoidesD. Ancylostoma duodenale |
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Answer» Correct Answer - b Trichinella spiralls shows vivipartiy |
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| 298. |
In Hydra, both pseudopodia and flagella occur inA. Nutritive cellsB. Epithelio-muscular cellsC. Sensory cellsD. Gland cells |
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Answer» Correct Answer - a Nutrituve muscular cells bear both flagella and pseudopodia |
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| 299. |
Fill in the blanks In sponges, fertilisation is a_____ and development is b_____having a larval stage which is morphologically c______from the adult.A. a-Internal,b-Indirect, c-distinctB. a-Internal, b-Indirect, c-similarC. a-External, b-Direct, c-distinctD. a-External, b-Indirect, c-similar |
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Answer» Correct Answer - A In Sponges, fertilisation is internal and development is indirect having a larval stage which is morphologically distinct from the adult. |
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| 300. |
Assertion: Sponges belong to Porifera. Reason: Sponges have canal system.A. IF both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. the assertion is true but the reason is falseD. both are false |
| Answer» Correct Answer - B | |