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1.

Assertion. Oysters and clams produce pearls. Reason. They are cultured for this purpose.A. If both A and B are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true but R is falseD. If both A and R are false

Answer» Correct Answer - B
2.

In Protozoa like Amoeba and Paramecium, an organelle is found for osmoregulation which isA. Contractile vacuoleB. MitochondriaC. NucleusD. Food vacuole

Answer» Correct Answer - A
3.

How do the terms corallum and corallite differ ?

Answer» Corallite is the calcareous exoskeleton of an individual and corallum is the exoskeleton of entire colony.
4.

The following mammal lays eggsA. PorcupineB. PlatypusC. KangarooD. Koala

Answer» Correct Answer - B
5.

The feet with two toes forming cloven hoof is seen inA. HorseB. ZebraC. RhinocerosD. deer

Answer» Correct Answer - D
6.

Helically coiled shaped X organ is found inA. CrustaceaB. PoriferaC. InsectaD. Amphibia

Answer» Correct Answer - A
7.

Yellow fever and dengue hemorrhagic fever is transmitted byA. CulexB. AdeesC. AnophelesD. Bed bug

Answer» Correct Answer - B
8.

Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?A. Pheretima-Sexual dimorphosimB. Musca- Complete metamosphosisC. Chamelon- MimicryD. Taenia - Polymorphism

Answer» Correct Answer - B
9.

Which is a matching set in taxonomyA. Leech, locust, sea urchin, lobsterB. star fich, jelly fish, cuttle fish, octopusC. Milliped, crab, centipede,coackroachD. Nereis, planaria, round worm, earthworm

Answer» Correct Answer - C
10.

Tail vertebrae of birds are fused to formA. PygostyleB. CoccyxC. UrostyleD. Synsacrum

Answer» Correct Answer - A
11.

Which of the following is not a character of Aves?A. The forelimbs are modified into wingsB. The hind limbs generally have scales and the long bones are pneumaticC. Skin is dry without glands except the oil gland at the base of the tailD. Air sacs are connected to the lungs which help in exchange of gases

Answer» Correct Answer - D
12.

Which of the following is not a character of Aves?A. The forelimbs are modified into wingsB. The hindlimbs generally have scales and the long bones are pneumaticC. Skin is dry without glands except the oil gland at the base of the tailD. They are oviparous and have external fertilisation

Answer» Correct Answer - D
13.

Aves areA. AmmonotelicB. UricotelicC. UreotelicD. Both (1) & (3)

Answer» Correct Answer - B
14.

In contrast to Annelids the Platyhelminthes showA. Radial symmetryB. Presence of pseudocoalC. Bilateral symmetryD. Absence of body cavity

Answer» Correct Answer - D
Absence of body cavity
15.

Assertion: Digestion is chiefly extracellular in Ctenophores. Reason:In Ctenophores, digestive tract is incomplete.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - d
Digestive tract in Ctenophores consists of mouth, pharynx or stomodaeum, stomach or infundibulum, anal canals and two anal pores. Since there are mouth and anal pores present, the digestive tract is complete. The digestion in Ctenophores is both extracellular and intracellular.
16.

What is common about Trypanosoma, Noctiluca Monocystis and GiardiaA. These are all parsitesB. These are all unicellular protists .C. They have flagellaD. They produce spores.

Answer» Correct Answer - B
17.

Which fins are paired in fishesA. Dorsal fin and anal finB. Pelvic fin and ventral finC. Pectoral fin and pelvic finD. Caudal fin and dorsal fin

Answer» Correct Answer - C
18.

Select the correct option in respect of characteristics of each group. `{:("Cyclostomes","Chondrichthyes","Osteichthyes"),((i)"Suking mouth","Ventral mouth","Terminal mouth "),((ii)"Scales absent","Placoid scales","Cycloid/Ctenoid scales"),((iii)"Marine","Marine","Marine adn freshwater"),((iv)6-15"pairs of gills",5-7 "pairs of gills without operculum",4 "pairs of gills with operculum"):}`A. (i) and (ii) are correctB. (i) and (iv) are correctC. Only (iii) is correctD. All are correct.

Answer» Correct Answer - D
19.

Assertion : In Balanoglossus, proboscis is involved in excretion Reason : Glomerulus is present in proboscis.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 - A
20.

Taenia saginata differs from Taenia solium inA. Absence of scolex hooksB. Scolex deovid of hook and difference in secondary hostC. Absence of scolex hooks and presence of both male and female reproductive organs.D. Presence of scolex hooks

Answer» Correct Answer - B
21.

Taenia saginata differs from Taenia solium inA. Absence of scolex hooksB. Abosence of scolex hooks and uterine branchingC. Absence of scolex hooks and presence of both male and female reproductive organsD. Presence of scolex hooks

Answer» Correct Answer - A
Taenia saginata is also unarmed tapeworm because the scolex does not possess hooks
22.

True fishes possess gills and fins. Which of the following not a true fishA. Silver fish (Lepisma)B. Gold fish (Carassius)C. Silver carp (Hythalamictyes)D. Sea horse (Hippocampus)

Answer» Correct Answer - A
23.

Which of the following are reffered as non-vertebrate chordate?A. Ciona, Ascidia, AmphioxusB. Lamprey,Myxine, SharkC. Scoliodon, Torpedo, TrygonD. Ptristis, branchiostoma, Scyllium

Answer» Correct Answer - A
24.

Assertion:The body of hemichordates is divisible into proboscis, collar and trunk. Reason: Proboscis gland helps in digestion.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - c
Hemichordates are worm-like marine animals. Their body is composed of an anterior probosics, a collar and a long trunk. Proboscis gland is excretory in function.
25.

Which of the following is the distinguishing feature between tehh taenia solium and taenia saginata?A. In taenia saginata hooks on scolex are not foundB. In taenia saginata proglottids are not foundC. In taenia saginata uterine branching is absentD. Both A and C

Answer» Correct Answer - D
In taenia saginata hooks on scolex are not found and uterine branching is absent.
26.

Which of the following is a chordate feature, not shared by the non-chordates?A. Triploblastic bodyB. Truel coelomC. Bilateral symmetryD. Notochord

Answer» Correct Answer - D
27.

Gills slits in chondricthyes areA. UncoveredB. Coverd by operculumC. AbsentD. Only sometimes covered

Answer» Correct Answer - A
28.

Presence of claspers is an important character inA. SphyrnaB. EcheneisC. HippocampusD. Exocoetus

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.
29.

Claspers are present inA. Chondrichthyes (in pelvic fins)B. Chondrichthyes (in pectoral fins)C. Osteichthyes (in pelvic fins)D. Osteichthyes (in pectoral fins)

Answer» Correct Answer - A
Claspers are present in chondrichthyes (In pelviv fins).
30.

Which of the following statements are true/false? I. In torpedo, the electric organs are capable of generating strong electric shock. II. Claspers are found in cartilaginous fishes. III. Amphibian skin is moist and has thick scales. IV. Birds are poikilothermous animals. V. The most unique mammalian characteristic is the presence of milk producing mammanry glands by. which the young ones are nourished.A. I,II, and III and true, IV, V are false.B. I, II, and V and true, III, IV are false.C. I, III, and V and true, II, IV are false.D. I, II and IV and true, III, V are false.

Answer» Correct Answer - B
* Amphibian skin is moist and without scales.
* birds are homoeothermous animals.
31.

Enteronephric nephridia of earthworm are concerned withA. ExcretionB. RespirationC. DigestionD. Osmoregulation

Answer» Correct Answer - A
32.

The distinguishing feature of all chordates isA. A ventrally placed nerve cordB. A water vascular systemC. A chitinous exoskeletonD. Notochord

Answer» Correct Answer - D
33.

Assertion:Claspers are a distinguishing feature of males in Class Chondricthyes. Reason: Claspers help in copulation.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - b
In Chondricthyes, male can be distinguished from the female, as the former has a pair of hard elongated claspers attached to the pelvic fins. The claspers help in the copulation.
34.

How do you differentiate a butterfly from a moth?A. Moth is diurnalbut butterfly is nocturnalB. Moth has simple eyes but butterfly has compound eyesC. Moth has feathery antennae but butterfly has club shaped antennaeD. Moth has one pair of wings but butterfly has two pairs of wings.

Answer» Correct Answer - c
35.

Which of the following is an important distinguishing feature of butterfly and not moth?A. Stout body, nocturalB. Wings are not filded in sitting positionC. Antennae are long with globose end, and diurnalD. Antennae are short, with tepering ends and feathery and nocturnal

Answer» Correct Answer - C
Antennae are long with globose end, and diurnal
36.

How do you differentitate a butterfly from a mothA. moth has feathery antennae but butterfly has club shaped antennaeB. Moth has one pair of wings but butterfly has two pairs of wings.C. Moth is diurnal but butterfly is nocturnalD. Moth has simple eyes but butterfly has compound eyes.

Answer» Correct Answer - A
Most important character of mammals is the presence of mammary gland and internal fertilization
37.

At present, the Dipnoans are distributed overA. Europe and North AmericaB. Latin America and AustraliaC. Europe and Latin AmericaD. North America and Australia

Answer» Correct Answer - B
Leucosolenia shows simplest (ascon) type of canal system. In this, surrounding water enter the canal system through ostia. This water of sea enters into the spongocoel and pushed out readily thorugh osculum. Course taken by the water current in the body of spongs may be shown as under.
Ingressing `underset("Ostia")overset("Through")(rarr)` Spongocoel `underset("Osculum")overset("Through")(rarr)` To outside
38.

Hemicyclaspsis belongs to the classA. PiscesB. OstracodermiC. CyclostomataD. Cnathostomata

Answer» Correct Answer - B
The duck billed platypus and the spiny anteater are primitive oviparous, reptiles like mammals and these are included in subclass prototheria of class mammalia. Both of them have 12 pairs of cranial nerves and 7 pairs of cervical nerves.
39.

Mouth parts of a butterfly are of typeA. spongingB. siphoningC. piercing and suchkingD. chewing and sucking

Answer» Correct Answer - B
40.

The animal which does not show any metamorphosis of larval stage isA. Pheretima pasthumaB. AsterialC. Musca domesticaD. Butterfly

Answer» Correct Answer - A
A larval stage is absent in earthworm so there is no metamorphosis.
41.

The correct sequence of arrangements of segments in the leg of cockroach isA. Tibia, trochanter, femur, tarsus and coxaB. Trochanter, coxa, tibia, femur and tarsusC. coxa, femur, trochanter, tibia and tarsusD. coxa, trochanter, femur, tibia and tarsus

Answer» Correct Answer - D
42.

In Pheretima, there are red coloured round bodies in 4th, 5th and 6th segments above the alimentary canal They are believed to be involved inA. ExcretionB. DigestionC. ReproductionD. Leucocyte production

Answer» Correct Answer - D
In 4,5 and 6 segment red colour follicular bodies called blood glands serve for the manufacture of blood corpuscles and haemoglobin
43.

In Which one of the following the genus name.A. `{:("Genus name","Two characters","Phylum"),("Pila","(i).Body segmented mouth with redula","Molluscs"):}`B. `{:("Genus name","Two characters","Phylum"),("Asterias","(ii).Spiny skinned water vascular system","Echinodermata"):}`C. `{:("Genus name","Two characters","Phylum"),("Sycon","(iii).Pore bearing Canal system","Prifera"):}`D. `{:("Genus name","Two characters","Phylum"),("Periplaneta","(iv).Jointed appendages chitinous exoskeleton","Arthropoda"):}`

Answer» Correct Answer - A
44.

From the following statements, select the wrong one.A. Millipedes have two pairs of appendages in each segment of the bodyB. Prawn has two pairs of antennaeC. Animals belonging to phylum porifera are exclusively marineD. Nematocysts are characteristic of the phylum cnidaria

Answer» Correct Answer - C
45.

Given are the four matches of phyla with their characteristic cells A. Coelenterate-Nematocytes B. Porifera-Chanocytes C. Ctenophora-Solenocytes D. Platyhelminthes-Nephrocytes Mark the option that has both correct matches.A. A and BB. B and CC. C and DD. B and D

Answer» Correct Answer - A
46.

Cockroaches are brown or black bodies animals that are included in class_____ of phylum______.A. Reptilia, AnnelidaB. Insecta,ArthropodaC. Insecta,AnnelidaD. Reptilia, Arthropada

Answer» Correct Answer - B
47.

In Hydra, egestion of undigested food and excretion of nitrogenous wastes occur throughA. Mouth and tentaclesB. Mouth and body wallC. Mouth and mouthD. Body wall and body wall

Answer» Correct Answer - b
In Hydra, undigested residues are egested from coelenteron through mouth and body wall.
48.

In Hydra, waste materials after digestion and nitrogenous waste materials are removed fromA. Mouth onlyB. Body wall onlyC. Mouth and body wall respectivelyD. Mouth and tentacles respectively

Answer» Correct Answer - C
Mouth and body wall respectively
49.

In Hydra, waste material of food digestion and nitrogenous waste material are removed fromA. Mouth and mouthB. Body wall and body wallC. Mouth and body wall respectivelyD. Mouth and tentacles

Answer» Correct Answer - C
Mouth and body wall respectively
50.

In cockroaches during the digestion of food, the enzymes cellulase in synthesised byA. SalivaB. Lining cells of midgutC. Bacteria in the midgutD. Cellulase is never synthesised

Answer» Correct Answer - C
(a) Ratitae are the flightless birds which are grouped upder super order paleognathae