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.
| 501. |
The basis of classification of phylum-Mollusca isA. shellB. footC. mantleD. All of these |
| Answer» Correct Answer - D | |
| 502. |
Coelom of animals commonly known as tusk shell originatesA. by enterocoelic processB. by schizocoelic process and is filled with coelomic fluidC. from the blastocoelD. by splitting of embryonic mesoderm and is filled with blood |
| Answer» Correct Answer - D | |
| 503. |
What is the function of statocyst of snail ?A. TastingB. LocomotoryC. EquilibriumD. Reproductive |
| Answer» Correct Answer - C | |
| 504. |
A soft and spongy layer of skin forms of mantleA. over the head regionB. over the muscular footC. over the visceral humpD. all over the body |
| Answer» Correct Answer - C | |
| 505. |
In the mantle cavity , feather-like gills are present , which haveA. masticatory functionB. respiratory functionC. excretory functionD. Both (b) and (c) |
| Answer» Correct Answer - D | |
| 506. |
Which one of the following orders of mammals posesses homodont dentition?A. MonotremataB. CetaceaC. MarsupialiaD. Chiroptera |
| Answer» Correct Answer - B | |
| 507. |
Which one of the following groups of animals is bilaterally symmetrical and triploblasticA. SpongesB. CoelenteratesC. CtenophoresD. Aschelminthes |
| Answer» Correct Answer - D | |
| 508. |
Assertion Epitoky is seen in Nereis . Reason Individual showing epitoky is called Heteronereis .A. If both Assertion and Reason are true and Reason is the correct explanation of AssertionB. If both Assertion and Reason are true , but Reason is not the correct explanation of AssertionC. If Assertion is true , but Reason is falseD. If Assertion is false , but Reason is true |
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Answer» Correct Answer - B In Nereis , most of the posterior segments are filled with gametes , constituting the sexual region of worm or epitoke . Few anterior segments do not take part in gamete formation , these are the asexual region or atoke . Sexually mature worm , with these two regions is known as Heteronereis and teh phenomenon involving transformation of non-sexual individual into sexual individual is referred to as epitoky. |
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| 509. |
The character of starfish to break away a part of its body isA. autolysisB. autophagyC. autotomyD. autogamy |
| Answer» Correct Answer - C | |
| 510. |
Which of the following is not a part of ambulacral system of a starfish ?A. Ring canalB. MadreporiteC. Radial canalD. Excurrent canal |
| Answer» Correct Answer - D | |
| 511. |
The porous plate present in the aboral side of starfish isA. umbelicusB. genital poreC. madreporiteD. mouth |
| Answer» Correct Answer - C | |
| 512. |
Autotomy in a starfish is followed byA. degenerationB. regenerationC. autolysisD. All of these |
| Answer» Correct Answer - B | |
| 513. |
Select the statement which is correct about the Echinoderms .A. All animals of this phylum are exclusively freshwater organismsB. Their body is polymorphicC. They are diploblastic animalsD. Their body bears jaw-like structures which are called oral arms |
| Answer» Correct Answer - B | |
| 514. |
Equal radial parts of starfish areA. actinomeresB. tube feetC. oral armsD. spines |
| Answer» Correct Answer - A | |
| 515. |
Which one of the following characterises Heteronereis stage of Nereis ?A. Very active asexual stageB. Quite inactive sexual stageC. Sexual stage with epitoke which is very activeD. Asexual stage with epitoke which is very active |
| Answer» Correct Answer - C | |
| 516. |
Which function does the coelom duct perform in Nereis ?A. Respiratory and excretoryB. Secretory and excretoryC. Nutritive and locomotoryD. Reproductive and excretory |
| Answer» Correct Answer - D | |
| 517. |
Among the statements given below about Nereis , select the incorrect statements about the organism and mark the correct code . I . The phenomenon of sexual maturation of Nereis is called heterotoky . II . The pygidium or Nereis is called anal segment . III . The alimentary canal of the organism has three distinct regions . IV . Fertilisation is external and occur in sand . V . Mesenteron of Nereis has oesophagus , stomach and intestine .A. I and IIIB. II and VC. II, III and IVD. I and IV |
| Answer» Correct Answer - A | |
| 518. |
The statements given below mention certain characteristic features of Nereis . Select the correct statements and mark the correct code . I . The body of Nereis is divisible into head , truck and pygidium . II . Anus is mid-dorsal in position present on the 26th segment . III. Prostomium bears a pair of short , cylindrical , sensory tentacles . IV . It is an omnivorous annelid .A. I and IIB. II , III and IVC. II and IVD. I and III |
| Answer» Correct Answer - D | |
| 519. |
In Nereis , swarming occurs at night forA. copulationB. shedding of sperms and ovaC. attaining sexual maturityD. None of the above |
| Answer» Correct Answer - B | |
| 520. |
The common house-cricket , which produces the familiar sound with its stridulating organs isA. Gryllus (Acheta)B. locustC. LepismaD. praying mantis |
| Answer» Correct Answer - A | |
| 521. |
Which of the following traits is not a characteristic of echinoderms ? I. They have a complete digestive system with two separate openings . II. They possess a complex haemal and perihaemal system for circulation . III. Removal of nitrogenous waste takes place through cloacal aperture . IV . Sense organs are poorly developed.A. I and IIB. II and IIIC. Only IIID. I and IV |
| Answer» Correct Answer - C | |
| 522. |
Identify the statement which is false regarding the characteristic features of phylym-Annelida ,A. The locomotory organs are minute rod-like chitinous setae or suckersB. A closed circulatory system of longitudinal blood vessles is present with lateral branches in each segmentC. Nephridia are present as excretory organs , which are endodermal in originD. Fertilisation is external |
| Answer» Correct Answer - C | |
| 523. |
The echinoderms have ......development .A. incompleteB. directC. indirectD. parthenogenetic |
| Answer» Correct Answer - C | |
| 524. |
Read the statements regerding echinoderms and choose th correct option (i) All are marine with orgen system level of orgenisation (ii) Adults are bilaterally symmetrical (iii) They are dioecious (iv) Fertilization is internal an indirect development is observed (v)Truploblastic and scoelomate animalsA. I and IIIB. Only VC. I , III and VD. I and V |
| Answer» Correct Answer - D | |
| 525. |
Which of the following is not true about echinoderms ?A. An excretory system is absentB. Sexes are separate and reproduction is sexualC. Development is indirect with free swimming larvaD. Mouth is present on the upper (dorsal ) side and anus on the lower (ventral ) side |
| Answer» Correct Answer - D | |
| 526. |
What is the origin of the coelom duct in Nereis ?A. GerminalB. EctodermalC. MesodermalD. Endodermal |
| Answer» Correct Answer - C | |
| 527. |
The number of larval instars in the life history of housefly isA. oneB. twoC. threeD. four |
| Answer» Correct Answer - C | |
| 528. |
The echinoderms are related to chordates by their similarity in the development ofA. gutB. nerveC. coelomD. heart |
| Answer» Correct Answer - C | |
| 529. |
Among annelids , great power of regeneration is observed inA. ChaetopterusB. PolynoeC. HirudinariaD. Lumbricus |
| Answer» Correct Answer - A | |
| 530. |
Cephalisation is absent inA. molluscsB. EchinodermsC. Both (a) and (b)D. Arthropods |
| Answer» Correct Answer - B | |
| 531. |
Which one is the common ancestral larval form of echinoderms , hemichordates and chordates ?A. DipleurulaB. BipinnariaC. TornariaD. Trochophore |
| Answer» Correct Answer - A | |
| 532. |
The animal which does not show any metamorphosis of larval stage isA. Pheretima posthumaB. AscarisC. Musca domesticaD. Butterfly |
| Answer» Correct Answer - A | |
| 533. |
The adult animal in this phylum is radially symmetrical but its larva exhibits bilateral symmetry .A. ProtozoaB. EchinodermataC. CoelenterataD. Arthropoda |
| Answer» Correct Answer - B | |
| 534. |
The stages between larval moults in an insect are calledA. pupaeB. grubsC. caterpillarsD. instars |
| Answer» Correct Answer - D | |
| 535. |
Termite I. is a harmful colonical insect . II.shows caste system . III.has a pair of respiratory trumpets . IV.are blood suckers of vertebrates . Choose the correct option .A. I and IIB. II and IIIC. III and IVD. II and IV |
| Answer» Correct Answer - A | |
| 536. |
Which one of the following is not a lepidopteran insect pest ?A. Jute semilooperB. Gramcut wormC. Sugarcane borerD. Sugarcane white fly |
| Answer» Correct Answer - D | |
| 537. |
Open circulatory system occurs inA. earthwormB. SnailC. cockroachD. Both (b) and (c) |
| Answer» Correct Answer - D | |
| 538. |
A female Anopheles mosquito can be recognized byA. proboscis and palpi are long and more or less of equal lengthB. proboscis long and palpi shortC. proboscis short and palpi longD. Both proboscis and palpi short |
| Answer» Correct Answer - A | |
| 539. |
Hemimetabolus insect , which is nocturnal and sanguivorous isA. CimexB. MuscaC. AnophelesD. Apis |
| Answer» Correct Answer - A | |
| 540. |
Which one is not not an insectA. SpiderB. LocustC. MosquitoD. Ant |
| Answer» Correct Answer - A | |
| 541. |
Which of the following are correctly matched ? `{:(I. "Trophallaxis" , - ,"Insect colony"), (II. "Limulus" , - , "Class-Merostomata"), (III. "Statocyst" ,-, "Prawn"), (IV. "Insect compound eye" , - , "Mosaic image in dim light"):}` Choose the correct option .A. I and IIB. I , II and IIIC. III and IVD. II and IV |
| Answer» Correct Answer - B | |
| 542. |
A characteristic feature of subphylum-Chelicerata isA. first appendage is feeding cheliceraeB. presence of covering called carapaceC. presence of four pairs of walking legsD. All of the above |
| Answer» Correct Answer - D | |
| 543. |
Pheretima belongs to the classA. PolychaetaB. OligochaetaC. HirudineaD. Archiannelida |
| Answer» Correct Answer - B | |
| 544. |
Limulus belongs to class -A. MerostomataB. CrustaceaC. OnychopheraD. Insecta |
| Answer» Correct Answer - A | |
| 545. |
Dentalium belongs to the classA. AmphineuraB. MonoplacophoraC. ScaphopodaD. Gastropoda |
| Answer» Correct Answer - C | |
| 546. |
Assertion Urochordates are known as tunicates. Reason Their body is covered with a protective tunic or sac.A. Both Assetion and Reason are true and Reason is the correct exp lanation of AssertionB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is falseD. Reason is true, but Assertion is false |
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Answer» Correct Answer - A Urochordates are known as tuniates because there body is c overed by a protective coverting called tuninc or test. Cut is composed largely of tunicine, similar to cellulose. |
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| 547. |
Assertion A parasitic disease elephantiasis can be identified with enormous growth in different body parts especially in limbs . Reason Elephantiasis is caused by the excess secretion of growth hormone.A. Both Assertion and Reason are true and Reason is the correct explanation of AssertionB. Both Assertion and Reason are true but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is FalseD. Assertion is false, but Reason is true. |
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Answer» Correct Answer - C Filarial worm (W. bancrofti) lives in the lymphatic system of amn, where it blocks the flow of lyph causing a condition known as elephantiasis. In this condition, the limbs or other lymph glands are lymph passage grow to an enormous size.Due to lymphatic obstruction, lymph cannot get back into circulatory system and accumulates into organs and causes them to swell or enlarge. |
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| 548. |
The kind of coelom represented in the diagram is charcteristic of A. earthwormB. cockroachC. woundwormD. tapeworm |
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Answer» Correct Answer - C The coelom given in the diagram is of roundworm (Ascaris), which belongs to the phylum-Aschelminthes. The body cavity in the diagram is not lined by mesoderm instead, the mesoderm is present in the form of scattered pouches in between the ectoderm and endoderm. Such a body cavity is called pseudocoelum and hte animls possessing these cavity are called pseudocoelomates. |
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| 549. |
The non-cellular layer present between pinacoderm and choanoderm in body wall of poriferans is knownA. mesodermB. middle lamellacC. mesenchymeD. None of these |
| Answer» Correct Answer - B | |
| 550. |
Which of the following pairs is not correctly matched ?A. Amoebocytes - Transport food to non-feeding cellsB. Collar cells - Movement of water and filtering entryC. Osculum - Control of water entryD. Spiculus - Skeletal supporting element |
| Answer» Correct Answer - C | |