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1751.

One very special feature in the earthworm pheretima is thatA. It has a long dorsal tubular heartB. Fertilisation of eggs occurs inside the bodyC. The typhlosole greatly increases the effective absorption area of the digested food in the intestineD. The S- shaped setae embedded in the integument are the defensive weapons used against the nemies

Answer» Correct Answer - C
Typhlosole is a highly glandular vascular longitudinal ridge increasing the area for absorption of digested food
1752.

The open circulatory system is found inA. earthwormB. cockroachC. snallD. Both a and b

Answer» Correct Answer - D
(b) Foramen of panizzae is a aperture in the heart of lizards and crocodile it is located at the point where right and left aortae cross each other and are in contact
1753.

One very special feature in the earthworm pheretima is thatA. Fertilization of eggs occurs inside the body .B. The typholosole greatly increases the effective absroption area of the digested food in the intestine.C. The S-shaped sete embedded in the intergument are the defensive weapons used against the enemies.D. It has a long dorsal tubular heart.

Answer» Correct Answer - B
1754.

In Hydra new nematocysts develop fromA. CnidocilsB. Glandular cellsC. Germ cellsD. Interstitial cells

Answer» Correct Answer - D
(d) Cnidoblast or nematocysts are derived from interstitial cells of epidermis.
1755.

In Hydra, nematocysts are found only inA. epidermisB. gastrodermisC. mesodermisD. endodermis

Answer» Correct Answer - a
1756.

Common between trichocysts of Paramecium and nematocysts of Hydra isA. Attachment and defenceB. Defence onlyC. SensitivityD. Food capturing

Answer» Correct Answer - B
Trichocysts of Paramecium and nematocysts of Hydra are the organ cells of offence and defence.
1757.

The location of lymph glands in Pheretima isA. `4^(th), 5^(th) and 6^(th)` segmentsB. `10^(th) to 20^(th)` segmentsC. `26^(th)` to the last segmentsD. `13^(th)` segment

Answer» Correct Answer - C
1758.

Looping and somersaulting types of locomotion are seen inA. LeechB. AmoebaC. SnailD. Hydra

Answer» Correct Answer - D
1759.

Looping and sommersaulting are the modes of locomotion found inA. syconB. LeucosoleniaC. HydraD. Physalia

Answer» Correct Answer - C
Looping and somersaulting are the mode of locomotion found in Hydra.
1760.

Nemtatocysts are theA. Stinging cels of cnidariansB. Stinging capsules of cnidoblastsC. Asexual body formsD. Sexual body forms

Answer» Correct Answer - B
Stinging capsules of cnidoblasts
1761.

Weberian ossicles are found inA. FrogsB. SnakesC. FishesD. Birds

Answer» Correct Answer - C
Weberian ossicles refer to a paired chain of three or four small bones in certain fishes e.g. Carps and cat fishes. It connects the air bladder with auditory capsule.
1762.

For life cycle of Obelia, most appropriate term used isA. MetamerismB. MetagenesisC. alternation of generationD. Both B and C

Answer» Correct Answer - B
For life cycle of obelia, most appropritate term used is metagenesis (this is not true alternation of generation).
1763.

Medusa of Obelia isA. CarnivorousB. HerbivorousC. Detritous feederD. Omnivorous

Answer» Correct Answer - C
1764.

The central body cavity of coelenterates is calledA. Gastro-vascular cavityB. SpogocoelC. CoelomD. Hypostome

Answer» Correct Answer - A
Gastro-vascular cavity
1765.

Which of the following do not have polyp formA. HydrozoaB. ScyphozoaC. AnthozoaD. All the abvoe

Answer» Correct Answer - B
(b) In class scyphozoa of phylum coelenterata, the polyp form is reduced or absent.
1766.

In which of the following, polyp phase does not found ?A. HydraB. PhysaliaC. obeliaD. aurelia

Answer» Correct Answer - D
In Aurelia polyp phase does not found only medusa is present
1767.

Two common characters found in centipede, Honey bee, silver fish, scorpion, cockroach and crab areA. Jointed legs and chitinous exoskeletonB. Green glands and tracheaeC. Book lungs and antennaeD. Compound eyes and anal cerci

Answer» Correct Answer - A
Common characters found in centipede, honey bee, silver fish, scorpion, cockroach and crab ar jointed legs and chitinous exoskeleton.
1768.

Coelenterates areA. Asymmetric animalsB. Radially symmetric animalsC. Bilaterally symmetric animalsD. Spherically symmetric animals

Answer» Correct Answer - B
Radially symmetric animals
1769.

Ascaris and cockroach resemble each other inA. PseudocoalB. Sexual dimorphismC. NephridiaD. Dorsal tubular nerve cord.

Answer» Correct Answer - B
Ascaris and cockroach reseble each other is sexual dimorphism.
1770.

What is common among silver fish scorpion crab and honey beeA. Jointed legsB. MetamorphosisC. Compound eyesD. Poison glands

Answer» Correct Answer - A
Jointed legs
1771.

Name the special cells characteristic of coelenterates.

Answer» Nematoblasts (cniodoblasts).
1772.

In Cockroach,wings are absent fromA. ProthoraxB. MesothoraxC. MehtathoraxD. None of these

Answer» Correct Answer - A
1773.

Tube feet occur inA. cockroachB. starfishC. cuttle fishD. cat fish

Answer» Correct Answer - B
In starfish locomotion takes place by external tube feet, connected with water vascular system.
1774.

Assertion : Obelia is dimorphic in nature Reason : Obelia shows polyp and gonangia formA. 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

Answer» Correct Answer - A
Hydroid colony of Obelia is dimorphic, exhibiting two type of individuals or zooids which differ both morphologically as well as physiologically. These two zooids are -
(i) Polyps - the nutritive zooid of the colony
(ii) Gonangium - the reproductive zooid.
1775.

Common feature between housefly and honey bee isA. HeadB. MouthpartsC. AbdomenD. Three paris of jointed legs

Answer» Correct Answer - D
1776.

Which part of Cockroach has both exoskeleton and endoskeletonA. HeadB. ThoraxC. AbdomenD. All the above

Answer» Correct Answer - A
1777.

Special character of coelenterates isA. polymorphismB. nematocystsC. flame cellsD. hermaphroditism

Answer» Correct Answer - B
The most characteristic feature of coelenterates is the presence of nematocysts or stinging cells.
Nematocysts are mainly concerned with food capture, defence and attachment.
1778.

If juvenile hormone is absent when silk worm moults, it willA. moult into another larval stageB. Moult into pupaC. mult into adultD. die.

Answer» Correct Answer - B
If juvenile hormone is absent when silk worm moults, it will moult into pupa.
1779.

Adult Culex and Anopheles can be distinguished with the help ofA. Mouth parts/colourB. Sitting postureC. Antennae/wingsD. Fedding habits

Answer» Correct Answer - B
1780.

Assertion : Coelenterates shown altermation of generation. Reason : In coelenterates, asexual generation is followed by sexual generationA. 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

Answer» Correct Answer - A
Alternation of generations may be defined as a phenomenon whereby, in the life history of an organism, a diploid asexual phase and a haploid sexual phase regularly alternates with each other. This type of true alternation of generation is also called metagenesis. In coelenterates, an asexual polypoid generation appears to alternate reqularly with a sexual medusoid generation.
1781.

Adult culex and anopheles can be distinguished with the help ofA. Mouth parts/colourB. Sitting postureC. Antennae/wingsD. Feeding habits

Answer» Correct Answer - B
Adult culex and anopheles can be distinguished with the help of sitting posture.
1782.

Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line system has receptor of sensory cells derived form ectoderm.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

Answer» Correct Answer - A
Lateral line system of fishes and aquatic larval amphibians whose receptors are group of sensory cells derived from ectoderm.
1783.

Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line system has receptor of sensory cells derived form ectoderm.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 - B
1784.

Lateral line occurs inA. star fishB. JellyfishC. DogfishD. All of the above

Answer» Correct Answer - C
1785.

The pelvic girdle of birds is attached to a complex structure formed by the fusion of last thoratic all lumber and first five caudal vertebra This structure is calledA. SynsacrumB. SymphysisC. SynkaryonD. Sympelvis

Answer» Correct Answer - A
(a) The flightless bird cassowary occurs in N.E. Australia and New Guinea.
1786.

Ichthyophis is aA. Limbless amphibianB. Limbless reptileC. WormD. Limbless mammal

Answer» Correct Answer - A
1787.

Ruminants belong to orderA. ProboscidaB. ArtiodactylaC. SireniaD. Cetacea

Answer» Correct Answer - B
1788.

Which of the following are Anamniotes ?A. Chondrichthyes, Ostiechthyes , AmphibiaB. Reptilia, Aves, AmphibiaC. Amphibia, Aves, MammalsD. Reptilia , Mammals , Aves

Answer» Correct Answer - A