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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.
| 551. |
Choose the cat fish from the followingA. Cirrhina mrigalaB. Wallago attuC. Labeo rohitaD. Catla catla |
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Answer» Correct Answer - B In Mollusca, circulatory system is of open type with a heart made up of two auricles and a ventricle. The blood has haemocyanin. |
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| 552. |
Blood of Pheretima isA. Blue with haemocyanin in corpusclesB. Blue with haemocyanin in plasmaC. Red with haemoglobin in corpusclesD. Red with haemoglobin in plasma. |
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Answer» Correct Answer - D In earthworm blood is red in colour repiratory pigment haemoglobin is dissolved in the blood plasma |
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| 553. |
Blood of Pheretima isA. Blue with hemocyanin in corpusclesB. Blue with hemocyanin in plasmaC. Red with hemocyanin in corpuscles.D. Red with hemoglobin in plasma |
| Answer» Correct Answer - D | |
| 554. |
In contrast to Annelids, the Platyhelminths showA. Absence of body cavityB. bilateral symmetryC. radial symmetryD. presence of pseudocoel |
| Answer» Correct Answer - A | |
| 555. |
A complete digestive system hasA. Single opening that serves as both mouth and anusB. Two openings, one as mouth and other as anusC. Single opening that acts as mouth onlyD. Two openings, both act as mouth as well as anus |
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Answer» Correct Answer - B Two openings, one as mouth and other as anus |
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| 556. |
Which of the following classes is incorrectly matched with its general characters ?A. Cyclostomata : Lack jaws and paired fins and body is covered with placoid scales.B. Osteichthyes : Four pair of gills are covered with an operculum and skin is covered with cycloid scalesC. Reptilla : Tympanum represents ear and fertilisation is internalD. Aves : Endoskeleton is fully ossified and long bones are hollow with air cavities called as pneumatic bones. |
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Answer» Correct Answer - A Cyclostomes have a sucking and circular mouth without jaws. Their body is devoid of scales and paired fins. |
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| 557. |
Which of the following is correct for the common cockroach ?A. Oxygen is transported by haemoglobin in bloodB. Nitrogenous excretory product is ureaC. The food is ground by mandibles and gizzardD. Malpighian tubules are excretory organs projecting out from the colon |
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Answer» Correct Answer - C In cockroach, mandibles are a pair of hard, strong, large, dark coloured triangular, structures which move in horizontal motion and crush food between them. Gizzard or proventriculus has an outer layer of thick circular muscles and thick inner cuticle forming six highly chitinous plate called teeth. The gizzard acts as the grinding chamber and helps in grinding the food particles. |
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| 558. |
Which one of the following groups of three animals each is correctly matched with their one characteristic morphological features?A. `{:("Animal","Morphological feature"),("Centipede,Prawn,Sea urchin","Jointed appendages"):}`B. `{:("Animal","Morphological feature"),("Cockroach,Locust,Taenia","Metameric segmentation"):}`C. `{:("Animal","Morphological feature"),("Scorpian, spider, cockroach","Ventral solid nerve cord"):}`D. `{:("Animal","Morphological feature"),("Liverfluke,Sea anemone, Sea cucumber","Bilateral symmetry"):}` |
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Answer» Correct Answer - C Scorpion, spinder, cockroach-ventral solid nerve cord. |
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| 559. |
The only incorrectly matched pair isA. Phylum-Porifera, Level of organisation-Cellular levelB. Phylum- Cnidaria, Level of organisation-Tissue levelC. Phylum- Annelida, Level of organisation- Organ level onlyD. Phylum- Mollusca, Level of organisation-Organ-system level |
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Answer» Correct Answer - C Phylum- Annelida, Level of organisation- Organ level only |
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| 560. |
Which of the following statement is not trueA. All members of the kingodom animalia are multicellularB. Nature of coelom is used as one of the basis of animal classificationC. there is not need of classification now as over a million species of animals have been described till nowD. the arrangment of cells in the body is one of the classifying feature fo the animals |
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Answer» Correct Answer - C there is not need of classification now as over a million species of animals have been described till now |
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| 561. |
Which one of the following groups of three animals is correctly matched with their one characteristic morphological feature?A. `{:("Animals","Morphological features"),("Scorpion, spider cockroach",-"Ventral solid central nervous system"):}`B. `{:("Animals","Morphological features"),("Cockroach,locust,Taenia",-"Metameric segmentation "):}`C. `{:("Animals","Morphological features"),("Liver fluke, sea anemone, sea cucumber",-"Bilateral symmetry "):}`D. `{:("Animals","Morphological features"),("Centipede,prawn,sea urchin",-"Jointed appendages "):}` |
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Answer» Correct Answer - A Scorpion, spider and cockroach are invertebrates and belong to the Phylum Arthropoda, therefore they have ventral solid central nervous system. In cockroach and locust, the body is segmented externally. In Taenia, the body is without true segments. Liver fluke has bilateral symmetry, sea anemone has radial symmetry and sea-cucumber has bilateral symmetry in larval form and radial symmetry in adult form. Centipede and prawn have jointed appendages. |
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| 562. |
In which one of the following, the genus name, its two characters and its class/phylum are correctly matched ?A. `{:("Genus "," Two characters", "Class/phylum",),("(a) Salamandra ","(i) A tympanum represents ear","Amphibia",),(,"(ii) Fertilisation is external ",,):}`B. `{:("Genus "," Two characters", "Class/phylum",),("(b) Pteropus","(i) skin possesses hair","Mammalia",),(,"(ii) Oviparous",,):}`C. `{:("Genus "," Two characters", "Class/phylum",),("(c) Aurelia","(i) Cnidoblast","Coelenterata",),(,"(ii) Organ level of organisation",,):}`D. `{:("Genus "," Two characters", "Class/phylum",),("(d)Ascaris","(i) Body segmented","Annelida",),(,"(ii) Males and females distinct",,):}` |
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Answer» Correct Answer - A Salamandra (salamander) is a member of class-Amphibia. It has a tympanum representing the ear and fertilisation is external. |
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| 563. |
In which one of the following, the genus name, its two characters and its phylum are not correctly matched? `{:("Genus name","Characters","Phylum"),((d)"Periplaneta",(i)"Jointed appendages ","Arthropoda"),(,(ii)"Chitinous exoskeleton",):}`A. `{:("Genus name","Characters","Phylum"),( "Pila",(i)"Body segmented","Mollusca"),(,(ii)"Mouth with radula",):}`B. `{:("Genus name","Characters","Phylum"),("Asterias",(i)"Spiny skinned","Echinodermate"),(,(ii)"Water vascular",):}`C. `{:("Genus name","Characters","Phylum"),("Sycon",(i)"Pore bearing","Porifera"),(,(ii)"Cancal system",):}`D. `{:("Genus name","Characters","Phylum"),("Periplaneta",(i)"Jointed appendages ","Arthropoda"),(,(ii)"Chitinous exoskeleton",):}` |
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Answer» Correct Answer - A Pila, belonging to the Phylum Mollusca, has unsegmented body and has a rasping organ, radula in the feeding. |
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| 564. |
The scientific name of Asian tiger mosquitoA. Aedes aegyptiB. Aedes albopictusC. Aedes taeniorhychusD. Aedes alobolineatus |
| Answer» Correct Answer - b | |
| 565. |
Which of the following is an r-strategistA. HumanB. InsectC. RhinocerousD. Whale |
| Answer» Correct Answer - B | |
| 566. |
Which of the following is a marine snakeA. EnhydrinaB. TyphlopsC. BungarusD. Naja |
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Answer» Correct Answer - A (a) Two common marine poisonous snakes are Enhydrina and Hydrophis |
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| 567. |
Assertion : Lateral line canal is one of the main characteristics of fishes. Reason : Laternal line canal is a system of sense organ concerned with life in water.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - A A faint line runs on either side of the body extending from the head to the posterior end of the tail, this is called lateral line (also called neuromast system). It marks the position of an underlying canal which runs along side of the body and contains special receptor organs. The lateral line canal extends anteriorly into the head, where it branches into several canals, at intervals these canals opens to the exterior through the pores. These canals contain neuromast organs like rheoreceptors or current receptors. The latter can perceive vibration of very low frequency and detect disturbances in water. |
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| 568. |
The reptile which glides in the air isA. DracoB. PhrynosomaC. AnguisD. Calotes |
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Answer» Correct Answer - A (a) Draco is a lizard which glides with the help of patagium it is called flying dragon |
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| 569. |
Assertion : Ampullae of lorenzini are found beneath the skin of head region in fishes. Reason : Ampullae of lorenzini acts as receptors.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - B The ampullae of Lorenzini are found in clusters on the dorsal and ventral surfaces of the head embeded below the skin but opening externally on the surface of the skin. The ampullae of Lorenzini were formerly regarded as neuromast organs but Sand (1938) had proved that these are thermoreceptor organs. The change in the temperature of water is carried to the brain through the ampullary receptors. |
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| 570. |
Teeth conducting poison in a snake are calledA. IncisorsB. CaninesC. HeterodontD. Fangs |
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Answer» Correct Answer - D (d) In poisonous snakes two maxillary teeth are enlarged grooved or tubular They are called poison fands and are concerned with injecting poison |
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| 571. |
A fish is charcterised by the presence ofA. dermal scalesB. paired finsC. pharyngal gillsD. all the above |
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Answer» Correct Answer - D Salamandra is a tailed amphibian, has tymphanum which represents ear.s |
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| 572. |
Assertion : In fishes, heart is venous. Reason : Only veins are present in the heart of fishes.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - C In fishes, the heart is mainly two chambered one auricle and one ventricle. Heart of Scoliodon receivers only deoxygenated or venous blood, hence named as venous heart. The auricle opens to the ventricle through atrioventricular aperture. Mainly the impure blood passes from the heart to the gills only once. Therefore they have single circulation only. |
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| 573. |
The main function of clitellum isA. Coccon formationB. LocomotionC. ExcretionD. Copulation |
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Answer» Correct Answer - A During breeding season glandulur cells of clitellum become very active and secrete a slimy substance that forms a girdle like covering around the clitellum in air this gradually dries and hardens to form a tough but elastic ring like egg capsule or cocoon. |
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| 574. |
Heart of fishes isA. One chamberedB. Two chamberedC. Three chamberedD. Four chambered |
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Answer» Correct Answer - B Members of ctenophora, cephalochordate and echinodermata are exclusively marine. |
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| 575. |
Which one of the following is an example of a lung fishA. ScoliodonB. CoelacanthC. LabeoD. Protopterus |
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Answer» Correct Answer - D Circadian rhythm or diurnal rhythm is any 24 hour periodicity in the behaviour or physiology of animals or plants. Examples are the sleep/activity cycle in many animals and the growth movements of plants. Circadian rhytms are generally controlled by biodlogical clocks |
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| 576. |
Major nitrogenous excretory material of Earthworm isA. Uric acidB. AmmoniaC. UreaD. Amino acids |
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Answer» Correct Answer - C Excretory products of earthworm are urea (about 50%) ammonia (about 40%) and traces of creatinin. |
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| 577. |
Pheretima isA. SterileB. HermaphroditeC. Radially symmetricalD. Dioecious |
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Answer» Correct Answer - B Earthworms are monoecious or hermaphrodites but fertilization is crossed type due to protandrous condition. |
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| 578. |
Which of the following during repiration obtain water dissolved oxygen by diffusion through their body surfaceA. CnidariansB. FishesC. AmphibiansD. Reptiles |
| Answer» Correct Answer - A | |
| 579. |
Which of the following fish injures its preyA. ClariusB. GambusiaC. HeteropneustesD. Solea |
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Answer» Correct Answer - C Althoght the Amoeba has no sense organs, it responds to chemical stimuli. It makes this determination by chemotaxis, a kind of chemical sense. This is the same reponse mechanism that our white blood use when they encounter and phagocytize a pathogen. |
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| 580. |
Which is true of AscarisA. HostB. AquaticC. UnisexualD. Bisexual |
| Answer» Correct Answer - C | |
| 581. |
Ospharidium is meant forA. ExcretionB. NutritionC. Selection and rejectioin of foodD. Grinding of food |
| Answer» Correct Answer - C | |
| 582. |
Asymmetry in gastropoda is due toA. TorionB. CollingC. TwistingD. Abodomen |
| Answer» Correct Answer - A | |
| 583. |
Which one belongs to the class of sea hare Or ltbr Which of the following belongs to the class gastropodaA. Sea cowB. Sea squirtC. SnailD. Sepia |
| Answer» Correct Answer - C | |
| 584. |
The presence of a special sense organ statocyst at the opposite end of mouth that is (aboral end) is the characteristic ofA. CnidariansB. PlatyhelminthesC. CtenophoraD. Nematodes |
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Answer» Correct Answer - C Ctenophora |
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| 585. |
Redula isA. Larval form of coelenterates (cnidarians)B. File like rasping organ of molluscsC. larval form of annelidsD. Uncovered structure present with echinoderms |
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Answer» Correct Answer - B File like rasping organ of molluscs |
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| 586. |
Match the following (w.r.t. type of metamorphsis invovled) A. a-ii,b-iv,-c`i`,d-iiiB. `a-`i`,b-iii,c-iv,d-iiC. a-ii,b-iii,c-`i`,d-ivD. a-ii,b-iv,c-iii,d-`i` |
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Answer» Correct Answer - A a-ii,b-iv,-c`i`,d-iii |
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| 587. |
In which of the following jaws are foundA. HerdmaniaB. FishC. PetromyzonD. Amphisouxus |
| Answer» Correct Answer - B | |
| 588. |
Closed blood vascular system found inA. BombyxB. SepiaC. BalanoglossusD. Ascidia |
| Answer» Correct Answer - B | |
| 589. |
Which of the following is not a digenetic worm?A. FasciolaB. WuchereriaC. EnterobiusD. Taenia |
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Answer» Correct Answer - C Enterobius |
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| 590. |
Pin worm is called asA. Schistosoma haematobiumB. Wucheraria bancroftiC. Ancylostoma duodenaleD. Enterbius vermicularis |
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Answer» Correct Answer - D (d) Enterobius vermivularis is the human pin worm or seat worm and is perhaps the most common parasite nematode of man throughout the world. |
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| 591. |
Blood vascular system in hmichordata isA. OpenB. ReducedC. ClosedD. Absent |
| Answer» Correct Answer - A | |
| 592. |
In which phylum is water vascular system foundA. ProtozoaB. ArthropodaC. PoriferaD. Echinodermata (Sea-cucumber) |
| Answer» Correct Answer - D | |
| 593. |
Water vascular system is present in which of the following phyla ?A. poriferaB. cnidariaC. ctenophoraD. echinodermata |
| Answer» Correct Answer - d | |
| 594. |
Alimentary canal is absent inA. PlanariaB. TapewormC. Blood flukeD. Liver fluke |
| Answer» Correct Answer - B | |
| 595. |
The body of the animal can be divided into identical halves in only one plane isA. AsymmetryB. Bilateral symmetryC. Radial symmetryD. Biradial symmetry |
| Answer» Correct Answer - B | |
| 596. |
Radial symmetry occurs inA. FishesB. MolluscsC. Star fishesD. Sponges |
| Answer» Correct Answer - C | |
| 597. |
What is a sagittal section ? |
| Answer» Median longitudinal vertical section. | |
| 598. |
Whatare sedentary animals? |
| Answer» Which live fixed to substratum. | |
| 599. |
In which one of the following sets of animals to all the four give birth to young ones ?A. kangaroo, hedgehog, dolphine, LorisB. lion, bat , whale, ostrichC. Platypus, penguin, bat, hippopotamusD. shrew, bat, cat, kiwi |
| Answer» Correct Answer - a | |
| 600. |
Which of the following statement is correct regarding cockroachA. Ventral nerve cord is presentB. Spiracles help in excretionC. Phallomere is present in female cockroachD. Compound eye is also called as ocellus |
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Answer» Correct Answer - A Eutheria includes viviparous placental mammals |
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