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1.

The animal who possess notochord throughout life is Or Which of the following animals is not a vertebrateA. FishB. AmphixusC. SnakesD. Birds

Answer» Correct Answer - B
2.

All chordates posses the following features exceptA. Dorsal hollow nerve cordB. Pharyngeal gill slitsC. NotochordD. Amnion

Answer» Correct Answer - D
3.

Which one of the following features is common is Earthworm, Butterfly Spider and PrawnA. SetaeB. AntennaeC. Ventral nerve cordD. Nephridia

Answer» Correct Answer - C
4.

Retrogressive metamorphosis is peculiar toA. HemichordataB. CephlochordataC. UrochordataD. Vertebrata

Answer» Correct Answer - C
5.

Retrogressive metamorphosis is peculiar toA. UrochordatesB. HemichordatesC. CephalochordatesD. All the above

Answer» Correct Answer - A
6.

Select the animal which exhibits retrogressive metamorphosisA. BufoB. AmphioxusC. LimulusD. Herdmania

Answer» Correct Answer - D
7.

Tunic isA. Sac- like covering of urochordatesB. A string inside cephalochordatesC. Collar of hemichordatesD. None of the above

Answer» Correct Answer - A
8.

An ascidian isA. BalanoglossusB. HerdmaniaC. BranchiostomaD. None of the above

Answer» Correct Answer - B
9.

The larva of urochordates contains notochordA. ThroughoutB. Head regionC. Tail regionD. Trunk region

Answer» Correct Answer - C
10.

Notochord occurs only in the larva ofA. BalanoglossusB. AmphixusC. HerdmaniaD. Cephalodiscus

Answer» Correct Answer - C
11.

Group where adults are degnerated while larvae are well developed isA. TunicataB. AgnathaC. AmphibiaD. Cephalochordata

Answer» Correct Answer - A
12.

Velum is found inA. HerdmaniaB. AmphioxusC. BranchiostomaD. Both B and C

Answer» Correct Answer - D
13.

Which is not characteristic of all chordates ?A. Dorsal nerve cordB. Diaphragm between thorax and abdomenC. CoelomD. Pharyngeal gill slits

Answer» Correct Answer - B
14.

A primary character of chordates isA. Paired nerve cordB. Ganglionated nerve cordC. Dorsal tubular nerve cordD. Solid ventral nerve cord

Answer» Correct Answer - C
15.

Which is an exlucsive chordata characterA. True coelomB. Pharyngeal gill slitsC. Bilateral symmetryD. Triploblastic

Answer» Correct Answer - B
16.

Which one is a link between chordates and nonchordates?A. Tadpole larvaB. SphenodonC. BalanoglossusD. Crocodilia

Answer» Correct Answer - C
17.

Paedomorphosis occurs inA. OikopleuraB. SalpaC. BalanoglossusD. Branchiostoma

Answer» Correct Answer - A
18.

Which is not a vertebrateA. FishB. AmphioxusC. OryctolagusD. Sparrow

Answer» Correct Answer - B
19.

In higher chordates, pharyngeal gill slits areA. AbsentB. Present in the embryoC. Replaced by abdominal gill slitsD. Replaced by thoracic gill slits

Answer» Correct Answer - B
20.

Pharyngeal gill slits are dorsal inA. CephalochordatesB. UrochordatesC. HemichordatesD. Euchordates

Answer» Correct Answer - C
21.

Gill slits of chordates areA. PairedB. Lateral perforationsC. PharyngealD. All the above

Answer» Correct Answer - D
22.

Nerve cord of chordates isA. DorsalB. HollowC. VentralD. Both A and B

Answer» Correct Answer - D
23.

In which of the following a notochord is absentA. Adult tunicateB. AmphioxusC. MyxineD. Larval tunicate

Answer» Correct Answer - A
24.

Type of coelom present in chordates isA. PsuedocoelomB. SchizocoelomC. EnterocoelomD. Both A and C

Answer» Correct Answer - C
25.

Which one swallows mudA. AmphioxusB. Sea SquirtC. Tongue WormD. Asymmetron

Answer» Correct Answer - C
26.

Coelom of hemichordates isA. SchizocoelB. EnterocoelC. Enterocoel with differentiation of three regionsD. Absent

Answer» Correct Answer - C
27.

In hemichordates the dorsal nerve cord isA. AbsentB. Present throughoutC. Restricted to tongue regionD. Restricted to collar region

Answer» Correct Answer - D
28.

Which one emits jet of water when disturbedA. BalanoglossusB. HerdmaniaC. SalpaD. Branchiostoma

Answer» Correct Answer - B
29.

Which one of the following is a protochordateA. AmphioxusB. LampreyC. LabeoD. Exocoetus

Answer» Correct Answer - A
30.

The most important character of chordata isA. Dorsal hollow nervous systemB. Vertebral columnC. KidneysD. None of the above

Answer» Correct Answer - A
31.

A member of cephalochordata isA. HerdmaniaB. CionaC. AmphioxusD. Balanoglossus

Answer» Correct Answer - C
32.

Which group of protochordates contains BalanoglossusA. UrochordataB. TunicataC. TunicataD. Hemichordata

Answer» Correct Answer - D
33.

In which group, the notochord is limited to only anterior part or probascisA. HemichordataB. UrochordataC. CephalochordataD. Mammalia

Answer» Correct Answer - A
34.

Which one is absent in BranchiostomaA. HeadB. Gill slitsC. NotochordD. Dorsal hollow nerve cord

Answer» Correct Answer - A
35.

Atrial and branchial apertures of Herdmania are surrounded byA. Two lipsB. Three lipsC. Four lipsD. Five lips

Answer» Correct Answer - C
36.

Herdmania isA. Sea purseB. Sea SquirtC. Sea potatoD. Both B and C

Answer» Correct Answer - D
37.

Epiderms of chordates isA. Single layeredB. TransitionalC. StratifiedD. Absent

Answer» Correct Answer - C
38.

Water current is maintained in Herdmania byA. Rhythmic contractions of tunicB. Opening and closing of atrial and branchial aperturesC. Constraction of incurrent siphonD. Cilia bordering gill slits

Answer» Correct Answer - D
39.

Notochord isA. Flat plateB. Rod-likeC. Made of turgid vacuolated cellsD. Both B and C

Answer» Correct Answer - D
40.

Lancelet isA. HerdmaniaB. SalpaC. BranchiostomaD. Doliolum

Answer» Correct Answer - C
41.

Part of Herdamania embedded in sand isA. TestB. FootC. TunicD. Both A and B

Answer» Correct Answer - B
42.

Notochord is used inA. Attachment of musclesB. Development of dorsal nerve cordC. Formation of gill slitsD. Development of kidneys

Answer» Correct Answer - A
43.

Notochord isA. SolidB. HollowC. LacunateD. Partially solid and partially hollow

Answer» Correct Answer - A
44.

Amongst chordates, the paired appendages are absent inA. HemichordatesB. UrochordatesC. CephalochordatesD. All the above

Answer» Correct Answer - D
45.

Chorda dorsalis isA. Dorsal solid nerve cordB. Dorsal hollow nerve cordC. NotochordD. Stomochord

Answer» Correct Answer - C
46.

A current of water is produced in Branchiostoma byA. CiliaB. CirriC. Wheel organD. Rostrum

Answer» Correct Answer - C
47.

Protochordates areA. Non - vertebratesB. AcraniatesC. PrevertebratesD. All the above

Answer» Correct Answer - D
48.

Protochordates areA. MarineB. Fresh waterC. TerrestrialD. All the above

Answer» Correct Answer - A
49.

In protochordates the episermis isA. AbsentB. MultilayeredC. A few layeredD. Single layered

Answer» Correct Answer - D
50.

Hepatoc portal system has evolved in protochordatesA. HemichordatesB. UrochordatesC. CephalochordatesD. All the above

Answer» Correct Answer - C