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1.

Siphonozoids of Pennatula differ from autozooids inA. Having tentacles and gonadsB. Lacking mesenteriesC. Lacking tentacles and gonadsD. Having mesenteries.

Answer» Correct Answer - C
2.

Anthocodia isA. Medusoid zooidB. Polypoid zooidC. Whole zooidD. Distal part of zooid with mouth and tentacles.

Answer» Correct Answer - D
3.

Coral Islands areA. LaccadivesB. SrilankaC. IcelandD. Mumbai.

Answer» Correct Answer - A
4.

Which one has a tree-like branched from?A. PennatulaB. GorgoniaC. PhysaliaD. Porpita.

Answer» Correct Answer - B
5.

Coral islands areA. FijiB. MaldivesC. LaccadivesD. All the above.

Answer» Correct Answer - D
6.

Great Barrier Reef of Australia isA. 1000 km longB. 2300 km longC. 2400 km longD. 3600 km long.

Answer» Correct Answer - B
7.

Great Barrier Reef occurs off the coast ofA. Sri LankaB. PhilippinesC. AustraliaD. Magarashtra.

Answer» Correct Answer - C
8.

Coral reef is formed ofA. Siliceous matterB. LimestoneC. ChitinD. Lava.

Answer» Correct Answer - B
9.

Tentacles of Hydra areA. HollowB. SolidC. Half hollow and half solidD. None of the above.

Answer» Correct Answer - A
10.

The number of tentacles in Hydra is calledA. 6 to 10B. 10 to 16C. 16 to 20D. 20 to 26

Answer» Correct Answer - A
11.

What is present in mesoglea of ctenophores which make it a loose layer of cells?A. AmoebocytesB. Elastic cellsC. Nerve cells and muscle cellsD. All the above.

Answer» Correct Answer - D
12.

Intermediate between diploblastic and triploblastic body structure is found inA. PorifersB. CoelenteratesC. CtenophoresD. Platyhelminthes.

Answer» Correct Answer - C
13.

What will happen if the cnidocil is touched with a glass rod?A. Nematoblasts will be dischargedB. Nematoblasts will not dischargeC. Nematoblasts will dieD. None of the above.

Answer» Correct Answer - A
14.

Nematoblasts in Hydra are commonly ofA. 2 typesB. 3 typesC. Four typesD. None of the above.

Answer» Correct Answer - C
15.

Nematoblasts responsible for locomotion areA. PenetrantsB. VolventsC. GlutinantsD. None of the above.

Answer» Correct Answer - C
16.

In Physalia, nematoblasts paralyse the prey byA. HaemotoxinB. NeurotoxinC. MyotoxinD. Both B and C.

Answer» Correct Answer - B
17.

Which nematoblasts coil around the prey?A. PenetrantsB. VolventsC. Small glutinantsD. Large glutinants.

Answer» Correct Answer - B
18.

Nematoblasts with blind thread tube is calledA. StenoteleB. DesmonemeC. Stereoline glutinantD. Streptoline glutinant

Answer» Correct Answer - B
19.

The largest nematoblast isA. StenoteleB. DesmonemeC. Small glutinantD. Large glutinant.

Answer» Correct Answer - A
20.

Coelenterate without medusoid stage in life cycle isA. ObeliaB. AureliaC. PhysaliaD. Metridium.

Answer» Correct Answer - D
21.

Growth zone of Hydra isA. DiffusedB. Near the footC. Below hypostomeD. In the middle.

Answer» Correct Answer - C
22.

Corals are generallyA. SolitaryB. ColonialC. StonelyD. Both B and C.

Answer» Correct Answer - D
23.

In corals, the gonads areA. EndodermalB. EctodermalC. Mesodermal.D. Mesogloeal.

Answer» Correct Answer - A
24.

Gonads are endodermal inA. HydraB. ObeliaC. PhysaliaD. Aurelia.

Answer» Correct Answer - D
25.

Colour of Brown Hydra is due toA. ChromoplastsB. ZooxanthellaeC. ZoochlorellaeD. Both A and B.

Answer» Correct Answer - B
26.

Brown Hydra isA. Hydra vulgarisB. Hydra viridisC. Hydra fuscaD. Hydra gangeticus.

Answer» Correct Answer - C
27.

Glutathione isA. ProteinB. TripeptideC. PolysaccharideD. Trisaccharide.

Answer» Correct Answer - B
28.

Coelenterates areA. UreotelicB. UricotelicC. AmmonotelicD. None of the above.

Answer» Correct Answer - C
29.

Nerve cells of coelenterates isA. ApolarB. UnipolarC. BipolarD. Multipolar.

Answer» Correct Answer - A
30.

Exoskeleton of coelenterates isA. SiliceousB. ChitinousC. CalcareousD. Both B and C.

Answer» Correct Answer - D
31.

The term coelenterate was coined byA. LinnaeusB. LeuckartC. ClarkD. Grant.

Answer» Correct Answer - B
32.

Skeleton present in coelenterates isA. EndoskeletonB. ExoskeletonC. Both A and BD. None of the above.

Answer» Correct Answer - D
33.

Which one is polymorphic coelenterate?A. ObeliaB. HydraC. AureliaD. Adamsia.

Answer» Correct Answer - A
34.

Hermit Carb develops a beneficial association withA. AdamsiaB. AureliaC. GorgoniaD. Pennatula.

Answer» Correct Answer - A
35.

Jelly Fish isA. AdamsiaB. AureliaC. ScoliodonD. Torpedo.

Answer» Correct Answer - B
36.

Crest or sail of float in Physalia is differently coloured. It isA. YellowB. CrimsonC. VioletD. Black.

Answer» Correct Answer - C
37.

A cormidium of Physalia consists ofA. TentaclesB. ZooidsC. Both A and BD. Tentacles, zooids and pneumatophore.

Answer» Correct Answer - C
38.

In Pysalia, zooids occur in groups calledA. ConulaeB. PalponsC. CormidiaD. Dactyloids.

Answer» Correct Answer - C
39.

Reproductive zooids of Physalia areA. MedusaeB. CormidiaC. GastrozooidsD. Gonophores.

Answer» Correct Answer - D
40.

Pneumatophore is present inA. HydraB. ObeliaC. AureliaD. Physalia.

Answer» Correct Answer - D
41.

Polyps of Obelia areA. Reproductive zooidsB. Nutritive zooidsC. Zooids meant for dispersalD. All of above.

Answer» Correct Answer - B
42.

Blastostyle of Obelia bearsA. TentaclesB. PolypsC. MedusaeD. Gonads.

Answer» Correct Answer - C
43.

Chitinous covering or perisarc is present inA. ObeliaB. HydraC. AureliaD. Physalia.

Answer» Correct Answer - A
44.

Gas gland occurs inA. GorgoniaB. PhysalisC. PennatulaD. Red Coral.

Answer» Correct Answer - B
45.

A coral island with a central shollow lake is known asA. Coral reefB. LagoonC. AtollD. Corallite

Answer» Correct Answer - C
46.

The mesolamella/mesogloea is formed byA. EpidermisB. GastrodermisC. Epidermis and gastrodermisD. Mesoderm.

Answer» Correct Answer - C
47.

Hydra can digest all types of food exceptA. ProteinsB. FatsC. StarchesD. None of the above.

Answer» Correct Answer - C
48.

Polymorphic animal isA. PhysaliaB. HydraC. TubiporaD. Metridium.

Answer» Correct Answer - A
49.

Which part of Hydra is without namatoblasts ?A. Pedal discB. TentaclesC. ManubriumD. Stomach region.

Answer» Correct Answer - A
50.

Which part of Hydra is without supporting lamella?A. Basal discB. Central part of pedal discC. TentaclesD. None of the above.

Answer» Correct Answer - B