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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.
| 101. |
Assertion : Acraniata is a group of organisms which do not have distinct cranium. Reason : If includes small marine forms without head.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 Acraniata includes marine forms without head or cranium. They lack jaws, vertebral column, paired appendages. |
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| 102. |
The parasite found in the seminal vesicle of earthwormA. MonocystisB. NosemaC. SarcocystisD. Nyctotherus |
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Answer» Correct Answer - A Species of monocystis are typically endoparasites of earthworms and occur in their coelom and seminal vesicles. |
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| 103. |
which one feature is common to Amphioxus , frog sea horse and crocdileA. pharyengeal gell slits at least in the developmental stagesB. A three - chambered heatC. dorsal solid nerve chordD. skeleton formed fo cartilage and bones |
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Answer» Correct Answer - A Stenohaline fishes have only a narrow range of salinity tolerance and hence remain restricted to either fresh or salt water. |
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| 104. |
which of the following is a distinct characterA. chorda dorsalisB. cephalizationC. clawsD. pharyngotomy |
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Answer» Correct Answer - A Catla, Labeo and cirrhinus are fresh water fishes. These are important cultiable species in india |
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| 105. |
Which one of the followig phyla is correctlly matched with its two general characteristicsA. Echinodermata- Pentamerous radial symmetry and mostly internal fertilizationB. Mollusca-Normally oviparous and development through a trochophore or veligerlarvaC. Arthropoda-Body divided into head, thorax and abdomen and respiration by tracheaeD. Chordata-Notochord at some stage and separate anal and urinary opening to the outside. |
| Answer» Correct Answer - B | |
| 106. |
Which one of the following phyla is correctly matched with its two general characteristics?A. echinodermata-pentamerous radial symmetry and mostly internal fertilizationB. mollusca-normally oviparous and development through a trochophore or veliger larva.C. arthropoda-body divided into head, thorax and abdomen and respiration by tracheaeD. chordata-notochord at some stage and separate anal and urinary openings to the outside. |
| Answer» Correct Answer - c | |
| 107. |
Which one of the following phyla is correctly matched with its two general characteristics?A. Echinodermata- pentamerous radial symmetry and mostly internal fertilisationB. Mollusca- normally oviparous and development through a trochophore or veliger larvaC. Arthropoda- body divided into head, thorax and abdomen and respiration by mouthD. Chordata - notochord persists throughout and separate anal and urinary openings to the outside |
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Answer» Correct Answer - B Mollusca is normally oviparous and its development may be direct or indirect. If development is indirect then it occurs through trochophore or veliger larva. Echinoderms show bilateral symmetry in larvae but pentamerous radial symmetry in adult. Fertilisation is external. In arthropods, body is divided into head, thorax and abdomen. Respiratory organs consists of book gills, book lungs and tracheae. Notochord is present in chordates at some stage of their lives. Urinary and anal openings, may or may not be separate. |
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| 108. |
Which one of the following is NOT a characteristic of phylum AnnelidaA. PseudocoelomB. Ventral nerve cordC. Closed circulatory systemD. Segmentation |
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Answer» Correct Answer - A Pseudocoelom or false coeolom is found in nematodes. |
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| 109. |
Which of the following belongs to the phylum annelidaA. OctopusB. AntC. NereisD. Crab |
| Answer» Correct Answer - C | |
| 110. |
Which one of the following phyla is correctly matched with its two general characteristics?A. Arthropoda : Body divided into head, thorax and abdomen and respiration by tracheae .B. Chordata : Notochord at some stage and separate anal anad urinary openings to the outsidesC. Echinodermata : pentamerous radial symmetry and mostyl internal fertilizationD. Mollusca : Normally oviparous an development through as trochophore or veliger larva |
| Answer» Correct Answer - C | |
| 111. |
Which one of the following is NOT a characteristic of phylum AnnelidaA. Veritral nerve cordB. Closed circulatory systemC. SegmentationD. Pseudocoelom |
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Answer» Correct Answer - D Pseudocoelom |
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| 112. |
Ascaris is characterized byA. absence of true coelom but presence of metamerismB. presence of neither true coelom nor metamerismC. presence of true coelom but absence of metamerismD. presence of true coelom and metamerism (metamerisation) |
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Answer» Correct Answer - B Ascaris is endoparasite of man. It inhabits the small intestine more frequently of children than of adults. The body is elongate, cylindrical and gradually tapering at both ends. There is no metameric segmentation. In Ascaris between body wall and visceral organs is a spacious fluid filled cavity. This cavity is not true coelom as it is not lined by coelomic epithelium, has no relation with reproductive and excretory organs and develops from blastocoel. This body cavity is referred as pseudocoel. |
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| 113. |
Which one of the following is NOT a characteristic of phylum AnnelidaA. Closed circulatory systemB. SegmentationC. PseudocoelomD. Ventral nerve cord |
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Answer» Correct Answer - C Name of the phylum-Annelida was first coined by Lamarck. The body of annelids is elongated, bilaterally symmetrical, triploblastic, truly coelomate and metamerically segmented into similar metameres. The coelom is true, schizocoelous. Blood vascular system is closed. The vervous system is with a pair of cerebral ganglia and a double ventral nerve cord bearing ganglia and lateral nerves in each segment. The blood vascular system consists of blood vessels and capillaries . Blood is composed of fluid plasma and colourless corpuscles, physiologically comparable to the leucocytes of vertebrates. Pseudocoelom is the body cavity of Aschelminthes (roundworm). |
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| 114. |
Which one of the following phyla is correctly matched with its two general characteristics?A. (a) Arthropoda - Body divided into head, thorax and abdomen and respiration by tracheaeB. (b) Chordata - Notochord at some stage and separate anal and urinary openings to the outsideC. Echinoderma ta - Pentamerous radial symmetry and mostly internal fertilisationD. Mollusca - Normally oviparous and development through a trochophore or veliger larva |
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Answer» Correct Answer - A Arthropoda is the largest phylum of animal kingdom, Body of an arthropod is divisible into head, thorax and abdomen. Head and thorax often fused to form cephalothorax. The respiration takes place by general body surface, gills, tracheae or book lungs. Molluscs are mostly dioecious or monoecious, one or more gonads with gonoducts, opening into renal ducts or to exterior. The fertilisation is external or internal, development direct or indirect through free larval forms. Echinoderms have a pentamerous radial symmetry derived from an original bilateral symmetry. The fertilisation is external, development indirect through free-swimming larval forms. Chordates are sharply distinguished from non-chordates by presence of notochord, dorsal tubular central nervous system and pharyngeal gills slits. |
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| 115. |
Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydrauluc skeleton. It is due toA. coelomic fluidB. bloodC. gut peristalsisD. setae |
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Answer» Correct Answer - A The body cavity (coelom) of earthworm is filled with an alkaline, colourless or milky coelomic fluid containing water, salts some proteins and four types of coelomic corpuscles i.e. phagocytes, mucocytes, circular nucleated cells and chloragogen cells. During burrowing the coelomic fluid becomes turgid and acts as hydraulic skeleton. Earthworm (Pheretima posthuma) living in burrows made in moist earth. The body shows metameric segmentation. About the middle of each segment there is a ring of tiny curved bristles called setae or chaetae, formed of a horny nitrogenous organic substance known of a horny nitrogenous organic substance known as chitin. The setae and musculature serve for locomotion as well as for anchoring body firmly in burrow. The blood of earthworm is composed of a fluid plasma and colourless corpuscles, physiologically comparable to the leucocytes of vertebrates. |
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| 116. |
Which of the following mammals lacks corpus callosumA. MacacaB. MacropusC. BalaenopteraD. Ornithorhychus |
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Answer» Correct Answer - D Brain of prototherian relatively small, simple and without corpus callosum |
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| 117. |
Jaw of shark containsA. Thecodont teethB. Acrodont teethC. Pleurodont teethD. None of these |
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Answer» Correct Answer - B The body of annelids is divided into segments called metameres, externally ring like grooves (annuli) and internally by vertical partitions called septa. The external segmentation corresponds to internal segmentation. This phenomenon is called metamere or metameric segmentation. Phylum annelida represents the first group of metazoan animal developing a true coelom with metameric segmentation. |
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| 118. |
Green glands found in some arthropods take part inA. ExcretionB. RespirationC. DigestionD. Both (1) and (2) |
| Answer» Correct Answer - A | |
| 119. |
The animal having notochord throughout life isA. FishB. AmphioxusC. SnakeD. Bird |
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Answer» Correct Answer - B The animal having notochord throughout life is Amphioxus (Cephalochordata). |
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| 120. |
Temperature changes in the environment affect most of the animals which areA. PoikilothermicB. HomoiothermicC. AquaticD. Desert living |
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Answer» Correct Answer - A Poikilothermic |
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| 121. |
Temperature changes in the environment affect most of the animals which areA. AquaticB. Desert livingC. PolkilothermicD. Homolothermic |
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Answer» Correct Answer - C Nutrituve muscular cells bear both flagella and pseudopodia |
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| 122. |
The animal who possess notochord throughout life is Or Which of the following animals is not a vertebrateA. FishB. AmphioxusC. BirdD. Snake |
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Answer» Correct Answer - B Trichocysts of Paramecium and nematocysts of Hydra are the organ cells of offence and defence. |
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| 123. |
Placoid scales are found inA. ReptilesB. Bony fishesC. Cartilaginous fishesD. Amphibians |
| Answer» Correct Answer - C | |
| 124. |
Heterocercal tall, placoid scales are found in one of the followingA. RohuB. NeoceratodusC. ScoliodonD. Anguilla |
| Answer» Correct Answer - C | |
| 125. |
What is common in whale, bat and rat ?A. Absence of neckB. Muscular diaphragm between thorax and abdomenC. Extra-abdominal testes to avoid high temperature of bodyD. Presence of external ears |
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Answer» Correct Answer - B The presence of diaphragm is a characteristic feature of mammals, diaphragm acts as a separater between thorax and abdomen. Whale, bat and rat all are mammals and have diaphragm. |
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| 126. |
A thick layer of cuticle on the surface of Ascaris indicatesA. ReproductionB. GrowthC. ParasitismD. Evolution |
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Answer» Correct Answer - C Presence of the resistant thick cuticle is not degenerate but a specialized character with reference to parasitism. |
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| 127. |
Which of the following has closed circulatory system ?A. MolluscsB. ArthropodsC. AnnelidsD. Platyhelminthes |
| Answer» Correct Answer - C | |
| 128. |
Assertion: Ambulacral system plays a major role in locomtion of echinoderm. Reason: Hydraulic pressure of fluid and contraction of muscle of tube feet make possible movement of echinoderm.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 the reason is falseD. if both are incorrect |
| Answer» Correct Answer - A | |
| 129. |
Main fucntion of pedicellariae in Asterias isA. DigenstionB. ExcretionC. RespirationD. Capture of prey and removel of debris |
| Answer» Correct Answer - D | |
| 130. |
Eggs of placental mammals areA. HomolecithalB. AlecithalC. MicrolecithalD. Mesolecithal |
| Answer» Correct Answer - C | |
| 131. |
What is common in whale, bat and rat ?A. Absence of neckB. Muscular diaphragm between thorax and abdomenC. Testes, outside abdominal cavityD. External earpinna |
| Answer» Correct Answer - B | |
| 132. |
Placoid scales are found isA. Cartilaginous fishesB. Bony fishesC. Paleontical fishesD. Lung fishes |
| Answer» Correct Answer - A | |
| 133. |
Canal system is the speciality of which phylum ?A. PoriferaB. CoelenterataC. EchinodermataD. None |
| Answer» Correct Answer - A | |
| 134. |
Arms, pedicellariae and spines are absent in the echinodermA. Sea cucumberB. Sea lilyC. Sea starD. Sea urchin |
| Answer» Correct Answer - A | |
| 135. |
Which one of the following statements about certain given animals is correct?A. Molluscs are acoelomates .B. Insects are pseudocoelomates .C. Flatworms ( Platyhelminthes ).D. Roundworms (Aschelminthes ) are pseudocoelomates. |
| Answer» Correct Answer - D | |
| 136. |
Which pair of cells is present in epidermis of Hydra but not in its endodermA. Stinging cells and interstitial cellsB. Gland cells and germ cellsC. Stinging cells and germ cellsD. Stinging cells and gland cells |
| Answer» Correct Answer - C | |
| 137. |
Syncytial epidermis is found inA. HydraB. AscarisC. earthwormD. starfish |
| Answer» Correct Answer - b | |
| 138. |
Chitin is found inA. MolluscaB. ArthropodaC. EchinodermataD. Coelenterata |
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Answer» Correct Answer - B (a) The flightless bird cassowary occurs in N.E Australia and New Guinea. |
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| 139. |
The epidermis of Ascaris isA. MulticellularB. SyncytialC. ClumnarD. Cuboidal |
| Answer» Correct Answer - B | |
| 140. |
Chitin exoskelton is found inA. CockroachB. AscarisC. NematodaD. None |
| Answer» Correct Answer - A | |
| 141. |
(i) Which roundworm is responsible for causing elephantiasts or filariasis disease ? (ii) What si the habitat of this roundworm inside its host ? (iii) Name atleast two other round worms which cause diseases in human beings. |
| Answer» (i) The filarial worm, Wuchereria bancrofti. (ii) Lymph vessels, (iii) Ascaris lumbricoides and Trichinella spiralis | |
| 142. |
A free living roundworm isA. EnterobiusB. RhabditisC. DracunculusD. Trichinella |
| Answer» Correct Answer - B | |
| 143. |
Fill up the blank spaces in the tabe below by selecting the correct option. `{:("Phylum/Class","Excretory organ","Circulatory system","Respiratory organ"),("Arthropoda",A,B,"Lungs/Gills/Tracheal system"),(C,"Nephridia","Closed","Skin"),(D,"Methanephridia","Open",E):}`A. `{:(A,B,C,D,E),("Green gland","Closed","Mollusca","Annelida","Tracheal system"):}`B. `{:(A,B,C,D,E),("Malpighian tubule","Open","Annelida","Mollusca","Feather-like gills"):}`C. `{:(A,B,C,D,E),("Antennary gland","Open","Porifera","Amphibia","Lungs"):}`D. `{:(A,B,C,D,E),("Nephridia","Closed","Mollusca","Annelida","Lungs"):}` |
| Answer» Correct Answer - B | |
| 144. |
Birds and mammals share one of the following characteristics as a common feature.A. Pigmented skinB. Almentary canal with some modificationC. ViviparityD. Warm blooded nature |
| Answer» Correct Answer - d | |
| 145. |
Which of the following pairs of animals has non-glandular skin ?A. Snake and FrogB. Chameleon and TurtleC. Frog and PigeonD. Crocodile and Tiger |
| Answer» Correct Answer - C | |
| 146. |
Which of the following pairs of animals has non glandular skinA. Snake and FrogB. Chameleon and TurtleC. Frog and PigeonD. Crocodile and Tiger |
| Answer» Correct Answer - c | |
| 147. |
Assertion : Salamander , Sphenodon are classified as amphibians . Reason : Their skin is naked, moist, and glandular.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 the Reason is not the correct explanation of the Assertion.C. If Assertion is true, but Reason is falseD. If both Assertion and Reason are false. |
| Answer» Correct Answer - D | |
| 148. |
In which one of the following the genus name, its two characters and its phylum are not correctly mathced. Whereas the remaining three are correct.A. `{:("Genus Name","Two Characters","Phylum"),("Sycon"," (a) pore bearing, (b) canal system","Porifera"):}`B. `{:("Genus Name","Two Characters","Phylum"),("Periplaneta"," (a) Jointed Appendages, (b) Chitinous Exoskeleton","Arthropoda"):}`C. `{:("Genus Name","Two Characters","Phylum"),("Pila"," (a) Body segmented, (b) Mouth with Radula","Mollusca"):}`D. `{:("Genus Name","Two Characters","Phylum"),("Asterias"," (a) Spiny skinned (b) Water vascular system","Echinodermata"):}` |
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Answer» Correct Answer - C `{:("Genus Name","Two Characters","Phylum"),("Pila"," (a) Body segmented, (b) Mouth with Radula","Mollusca"):}` |
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| 149. |
The given figures `(A-D)` show four animals. Select the correct option with respect to a common characteristic of any two of these animals. A. (a) & (d) have cnidoblasts for self-defenceB. (c) & (d) have a true coelomC. (a) & (d) respire mainly through body wallD. (b) & (c) show radial symmetry |
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Answer» Correct Answer - B (c) & (d) have a true coelom |
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| 150. |
Which one of the following kinds of animals are triploblasticA. CoralsB. Flat wormsC. SpongesD. Ctenophores |
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Answer» Correct Answer - B Flat worms |
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