Nature and Scope of biology, Understanding Life, and Origin of Life




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MODEL TEST 1
Nature and Scope of biology, Understanding Life, and Origin of Life


  1. Biological techniques are being increasingly misused to produce

a. Antibiotics b. Humulin c. Improved varieties of infective agents

d. Resistant varieties of plants and animals.



  1. Which of the of the pair is not correctly matched

a. Karyology study of nucleus

b. Phycology study of algae

c. Oncology study of bones

d. Palynology study of pollens and spores



  1. Who proposed that protoplasm is the physical basis of life

a. F.Miescher b. Huxley c. Robert Koch d. Purkinji

  1. Study of identification, nomenclature, classification and relationship amongst living organisms is called

a. Biosystematics b. Phylogeny c. Ontogeny d. Chronobiology

  1. Which one is not a correct combination

a. Historia plantarum Aristotle

b. Origin of species Darwin

c. Genera plantarum Linnaeus

d. Micrographica Robert Hooke



  1. “ Plants bend towards light because they need light for growth “.This statement is based on

a. Serendipity b. Telepathy c. Established observations d. Teleology

  1. The study of living organism, for human welfare is called

a. Ecobiology b. Biophysics c. Applied biology d. Cosmology

  1. Who divided taxonomy into alpha, beta and omega taxonomy

a. A.P de Candolle b. Julian Huxley c. Heywood d. Turrill

  1. Choose the correct pair

a. Apiculture Honey bee

b. Pisciculture Silkworm

c. Sericulture Fish

d. Silviculture Lac insect



  1. Acarology deals with the study of

a. Fossils b. Ticks and Mites c. Molluscs d. Coral reef

  1. Sodium chloride is an important constituent of

a. human blood b. bones c. lymph d. skin glands

  1. Which of the following is a polar molecule

a. Sodium chloride b. Water c. Carbon dioxide d. Oxygen

  1. Who stated that “ Life results due to a relationship of molecules and not a property of any one molecule “.

a. Linus Pauling b. Louis Pasteur c. Aristotle d. R.V. Rosenhof

  1. Energy must be added for a chemical reaction to start. This energy is called as

a. entropy b. enthalpy c. oxidation d. activation energy

  1. The correct sequence in increasing order of organizational complexity is

    1. Population-Variety-Species-Ecosystem

    2. Population-Species-Community-Ecosystem

    3. Population-Ecosystem-Species-Community

    4. Community-Population-Biosphere-Ecosystem

  2. Saline drip is given to patients suffering from

    1. High blood pressure

    2. Low blood pressure

    3. Heart disease

    4. Tuberculosis

  3. Approximate number of chemicals present in the cells of living organisms is

    1. 50

    2. 500

    3. 5000

    4. 50000

  4. In biological systems, the loss of energy is restored through the input of

    1. Free energy

    2. Entropy

    3. Enthalpy

    4. Activation energy

  5. Secretion of sweat glands of mammals is primarily meant for

    1. removal of excess water

    2. regulation of body temperature

    3. removal of excess salts

    4. killing of bacteria

  6. The ultimate source of energy for the biological world is

    1. Food

    2. Glucose

    3. ATP

    4. Sun

  7. An interesting modification of flower shape for insect pollination occurs in some Orchids in which the male insect mistakes the pattern on the orchid flower for the female species and tries to mate with it, thereby pollinating the flower. This phenomenon is

    1. Mimicry

    2. Pseudocopulation

    3. Pseudopollination

    4. Pseudoparthenocarpy

  8. If a person shows production of interferons in his body, the chances are that he has got an infection of

    1. Typhoid

    2. Measles

    3. Tetanus

    4. Malaria




  1. Which one of the following is an example of energy transfer

    1. Light energy is changed into chemical energy

    2. Chemical energy is changed into heat energy

    3. Chemical energy is changed into chemical energy

    4. Chemical energy is changed into mechanical energy

  2. Which of the following organism is regarded as immortal

    1. Paramecium

    2. Volvox

    3. Tortoise

    4. Amoeba

  3. The total number of nerve cells present in human brain is

    1. 1000 million

    2. 10000 million

    3. 11000 million

    4. 100000 million

  4. Presence of salts in the human body fluids gives the inference that

    1. we must eat ample amount of salts

    2. we must take saline bath

    3. our ancestors lived near the salt lakes

    4. life originated in the primitive ocean

  5. The most vital process for the existence of life on earth is

    1. Respiration in animals

    2. Photosynthesis in plants

    3. Communication in animals

    4. Reproduction in plants and animals

  6. The water in holy Ganges is pure due to the presence of

    1. Cyanophages

    2. Hydrophytes

    3. Bacteria

    4. Bacteriophages

  7. The energy derived from enzyme – substrate interaction is called

    1. Constant energy

    2. Binding energy

    3. Variable energy

    4. Activation energy

  8. The total heat constant or potential energy of a system is

    1. Entropy

    2. Tropical energy

    3. Enthalpy

    4. Free energy

  9. Saline is given to a person suffering with cholera because

    1. it causes lysis of bacterial cell wall

    2. cholera results in severe diaorrhoea leading to the loss of salts

    3. saline help to produce antitoxins

    4. None of these

  10. One of the following plants have not changed for several thousands of years

    1. Gnetum

    2. Dryopteris

    3. Ginkgo

    4. Palm

  11. There is no life on moon due to the absence of

    1. Oxygen

    2. Water

    3. Light

    4. Temperature

  12. Which of the following is not an adaptive feature

    1. Phototropism

    2. Geotropism

    3. Hibernation

    4. Cell division

  13. The most accepted theory of origin of life is

    1. Theory of spontaneous theory

    2. Oparin – Haldane theory

    3. Theory of special creation

    4. Theory of eternity of life

  14. Life appeared about

    1. 3.7 billion years ago

    2. 5.6 billion years ago

    3. 4.6 billion years ago

    4. 3.7 million years ago

  15. The first organisms were

    1. Saprotrophs

    2. Autotrophs

    3. Heterotrophs

    4. Autoheterotrophs

  16. Which of the following is first formed

    1. Eobionts

    2. Coacervates

    3. Genes

    4. Cells

  17. Which of the following scientists is associated with the naturalistic theory of origin of life

    1. Pasture

    2. Oparin

    3. Miller

    4. Darwin

  18. Respiration in the first organism was

    1. Aerobic

    2. Anaerobic

    3. Both aerobic and anaerobic

    4. Neither anaerobic and aerobic

  19. The earliest fossils known are

    1. Cyanobacteria

    2. Protists

    3. Viruses

    4. Fungi

  20. The first genome is thought to consists of

    1. DNA

    2. RNA

    3. Both DNA and RNA

    4. Proteins

  21. Which one was absent in the primitive atmosphere at the time of origin of earth

    1. Ammonia

    2. Hydrogen

    3. Oxygen

    4. Methane

  22. The most primitive cell like chemical aggregates capable of growth and division were

    1. Chemoautotrophs

    2. Eobionts

    3. Prokaryotes

    4. Coacervates

  23. Which is the age of prokaryotic microbes

    1. Precambrian

    2. Proterozoic

    3. Azoic

    4. Palaeozoic

  24. Which of the following compounds had very important role in the prebiotic evolution

    1. SO2

    2. NO

    3. CH4

    4. SO3

  25. The surprise products in the Miller’s experiment were

    1. Peptides

    2. Nucleosides

    3. Nucleotides

    4. Aminoacids

  26. Theory of spontaneous generation was given by

    1. Louis pastur

    2. Spallanzani

    3. F.Reddi

    4. Van Helmont

  27. Swan – necked flask experiment was done by

    1. Aristotle

    2. Francisco Redi

    3. Louis Pasteur

    4. Robert Koch

  28. Miller and Urey ,by creating environment of primitive earth in their apparatus, by producing amino acids from

    1. Hydrogen, Oxygen, Nitrogen and Water vapour

    2. Hydrogen, Ammonia, Methane and Water vapour

    3. Ammonia, Hydrogen, Oxygen and Water vapour

    4. Oxygen, Carbon dioxide, Methane and Water vapour

MODEL TEST 2 FOR KERALA PMT



Evidences of evolution , Theories of Evolution and Human evolution


  1. Which of the following is not a vestigial organ

    1. Rabbit’s nictitating membrane

    2. Human nictitating membrane

    3. Python’s pelvic girdle

    4. Scale leaves of Ruscus

  2. Which of the following is an extinct animal

    1. Protopterus

    2. Equus

    3. Archaeopteryx

    4. Columba

  3. Mesozoic era is called the age of

    1. Fishes

    2. Amphibians

    3. Reptile

    4. Birds

  4. Galapagos islands are located in

    1. Indian ocean

    2. Pacific ocean

    3. Atlantic ocean

    4. Arabian ocean

  5. The type of growth living organisms undergo is

    1. Reversible

    2. Apical

    3. Accretion

    4. Intussusception

  6. Ornithorhynchus is a connecting link between

    1. Birds and Reptiles

    2. Reptiles and Amphibians

    3. Reptiles and Mammals

    4. Fishes and Amphibians

  7. Some persons can move their pinnae. It is a case of

    1. Recapitulation

    2. Atavism

    3. Over specialization

    4. Regeneration

  8. Correct order of evolutionary sequence is

    1. Palaeozoic – Archaeozoic – Coenozoic

    2. Archaeozoic – Palaeozoic – Proterozoic

    3. Palaeozoic – Mesozoic – Coenozoic

    4. Mesozoic – Archaeozoic – Proterozoic

  9. The primates nearest to humans in the evolutionary line is

    1. New world monkeys

    2. Gorillas

    3. Lemurs

    4. Echidna

  10. Which of the following animal has become extinct recently

    1. Draco

    2. Dinosaur

    3. Mammoth

    4. Pteriodosperms

  11. Evolutionary convergence is the development of

    1. Common set of characters in groups of different ancestory

    2. Dissimilar characters in closely related groups

    3. Common set of characters in closely related groups

    4. Development of characters by random mating

  12. Most primitive fossil is

    1. Equus

    2. Meryhippus

    3. Mesohippus

    4. Eohippus

  13. Which of the following represent homologous organs

    1. Arm of man and Wing of bat

    2. Wing of bird and Wing of moth

    3. Gills of fish and Gills of prawn

    4. None of these

  14. Two geographical regions separated by high mountains are

    1. Oriental and Ausralian regions

    2. Palaearctic and Oriental regions

    3. Nearctic and Palaearctic regions

    4. Neotropical and Ethiopian regions

  15. Presence of Visceral pouches in the embryos of all vertebrates supports the theory of

    1. Organic evolution

    2. Biogenesis

    3. Metamorphosis

    4. Recapitulation

  16. In human beings, vestigial organs are

    1. Wisdom teeth, Coccyx, Vermiform appendix, Nail, Eyelid

    2. Wisdom teeth, Coccyx, Vermiform appendix, Pancreas, Elbow joint

    3. Wisdom teeth, Coccyx, Vermiform appendix, Nictitating membrane, Auricular muscles

    4. Coccyx, Wisdom teeth, Nail, Auricular muscles

  17. Mammals originated about

    1. 450 million years ago

    2. 250 million years ago

    3. 50 million years ago

    4. 7.5 million years ago

  18. An organism which is the connecting link between animals and plants is

    1. Bacteria

    2. Cyanobacteria

    3. Euglena

    4. Amoeba

  19. Which of the following are homologous

    1. Sweet potato and Ginger

    2. Passiflora tendril and Bougainvillea thorn

    3. Insect wing and Bird wing

    4. Tortoise shell and Mollusc shell

  20. Which one of the flowing includes all homologous organs

    1. Wing of butterfly, Wing of bird, Wing of bat

    2. Forelimb of frog, Wing of bird, Forelimb of rabbit

    3. Thoracic leg of cockroach, Hind leg of frog, Forelimb of rabbit

    4. Wing of bird, Wing of bat, Wing of flying lizard

  21. The diversity in the type of beak of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for

    1. Origin of species by natural selection

    2. Intra-specific variation

    3. Intra-specific competition

    4. Inter-specific competition

  22. Wing of Pigeon, bat and mosquito exhibit the phenomenon called

    1. Convergent evolution

    2. Divergent evolution

    3. Atavism

    4. Parallel evolution

  23. Adaptive similarities in different animals living in the same habitat is called

    1. Retrogressive evolution

    2. Parallel evolution

    3. Adaptive radiation

    4. Convergent evolution

  24. Development of Petagia in animals is …………….. adaptation

    1. Volant

    2. Arboreal

    3. Aquatic

    4. Cave

  25. Darwin finches show one of the following aspects of evolution

    1. Bio-geographic evidence

    2. Industrial melanism

    3. Biochemical evidence

    4. Embryological evidence



  26. Evolutionary development of a species can be best studied by

    1. DNA analysis

    2. Finding age by carbon dating

    3. Studying fossils of this species

    4. All the above

  27. Evolution can be studied now in action in

    1. Sphenodon

    2. Archaeopteryx

    3. Peppered moth

    4. Paramecium

  28. Human evolution originated in

    1. Africa

    2. Jawa

    3. France

    4. China

  29. Recapitulation concept was proposed by

    1. Von Baer

    2. Darwin

    3. Haeckel

    4. Oparin

  30. In plants like Acasia, the leaves are compound but their seedlings possess simple leaves. This phenomenon can be explained by

    1. Adaptive radiation concept by Darwin

    2. Theory of Inheritance of Acquired characters by Lamark

    3. Recapitulation concept by Von Baer

    4. Mutation theory by De Vris

  31. Hybridized sterile plant can be converted into a fertile species by doubling the chromosomes through induced polyploidy. Such plants are

    1. Diploids

    2. Tetraploids

    3. Amphidiploids

    4. Amphitetraploids

  32. Feathers of Archaeopteryx lived in the upper Jurassic period was obtained as fossil. This fossil is

    1. Mould

    2. Cast

    3. Coprolite

    4. Impression

  33. The Crossopterygian fish “ Latimaria “ is considered as the ancestor of terrestrial tetrapods. These fishes evolved into Amphibians during the period

    1. Devonian

    2. Silurian

    3. Ordovian

    4. Cambrian

  34. Lung fishes and Air breathing animals and Corals predominate during the period

    1. Mississippian

    2. Silurian

    3. Devonian

    4. Jurassic

  35. Giant Dinosaurs and Reptiles predominate during the Jurassic period. This period also marked the evolution of higher Insects and Angiosperms, Conifers, Cycads etc. Jurassic period comes under the era

    1. Cenozoic

    2. Palaeozoic

    3. Mesozoic

    4. Proterozoic

  36. The Homo erectus evolved about 1.7 million years ago used fire and tools and also used animal hides as clothings. The fossils of Homo erectus were named as

    1. Neanderthal man

    2. Cro-magnon man

    3. Jawa man and Peking man

    4. Proconsul

  37. The Anthropoids evolved into

    1. Apes, Proconsul and Monkeys

    2. Apes, Cro-magnon man and Old world monkeys

    3. Proconsul, New world monkeys and Peking man

    4. New world monkeys, Proconsul and Homo habilis

  38. Which fossil man is named as “ Handy Man “.

    1. Ramapithecus

    2. Australopithecus

    3. Homo erectus

    4. Homo habilis

  39. Human beings belongs to the family Hominidae which evolved about 24 million years ago. The relative family Pongidae includes

    1. Chimbanzee

    2. Gorilla

    3. Orangutan

    4. All these

  40. Homosapiens had two sub species namely Homo sapiens neanderthals and Homo sapiens sapiens ( Cro-magnon man ). Homo sapiens evolved directly from

    1. Homo erectus

    2. Homo habilis

    3. Ramapithecus

    4. Proconsul

  41. Closest relative of Modern day man is

    1. Chimbanzee

    2. Orangutan

    3. Apes

    4. Gibbon

  42. Name given to fossil man of Shivalic hills is

    1. Australopithecus

    2. Pithecanthropus

    3. Sinanthropus

    4. Ramapithecus

  43. Jawa ape man was discovered by

    1. Leaky

    2. Davison Black

    3. Dubois

    4. Cuvier

  44. Zoological name of Jawa man fossil is

    1. Sinanthropus

    2. Australopithecus

    3. Pithecanthropus

    4. Ramapithecus

  45. The book “ The Descent of Man “ was written by

    1. Malthus

    2. Darwin

    3. Lamark

    4. Spencer

  46. Which one of the following features is not in the direction of the evolution of human species

    1. Well developed brain

    2. Opposable thumb

    3. Binocular vision

    4. Raised control ridges

  47. Theory of “ Pangenes “ was put forth by

    1. De Vris

    2. Lamark

    3. Weismann

    4. Darwin

  48. Rise of flowering plant occurred during the

    1. Tertiary period

    2. Cretaceous period

    3. Devonian period

    4. Cambrian period

  49. The most recent era in geological time scale is

    1. Mesozoic

    2. Caenozoic

    3. Paleozoic

    4. Proterozoic

  50. One of the following factors will not allow Hardy- Weinberg principle to operate

a. Inreeding b. Mutation c. Gene pool d. None of these

MODEL TEST 3 FOR KERALA PMT


NON CHORDATA


  1. Hydra is

    1. Marine, radial, symmetrical and triploblastc

    2. Freshwater, biradial, symmetrical and triploblastic

    3. Freshwater, radial, symmetrical and diploblasic

    4. Marne, radial, symmetrical and triploblastic

  2. From which stage of silk moth, the silk is obtained

    1. Adult moth

    2. Egg

    3. Silkworm larva

    4. Cocoon

  3. Typhlosol in earthworm helps in

    1. Secretion of enzymes

    2. Digestion

    3. Absorption of food

    4. Excretion

  4. Indicate the correct statement pertaining to Ascaris

    1. Snail act as the second host of Ascaris

    2. The eggs of Ascaris containing second stage juvenile larva when swallowed by man become infective

    3. A larval stage of Ascaris is swallowed by cattle which inturn infects human beings

    4. Once inside the intestine, the Ascaris larva develops directly into adult without entering other organs of the host

  5. Choanocytes or Collar cells in Sponges are concerned with

    1. Excretion

    2. Gamete formation

    3. Intracellular digestion

    4. Protection

  6. The hypothetical sponge called “ Olynthus has the larval form Parenchymula but its relative forms like Leucosolenia, Ascon and Sycon sponges have the typical larval form called

    1. Amphiblastula

    2. Planula

    3. Trochophore

    4. Veliger

  7. In Hexactinella like Eupectella and Hyalonema ( Glass- rope sponge ) the spicules are Silicious. Name the sponge without spicule but contain only spongin

    1. Cliona ( Boring sponge )

    2. Spongilla ( Fresh water sponge )

    3. Euspongia ( Bath sponge )

    4. None of these

  8. Gemmules found in Spongilla ( Fresh water ) and Asperella ( Marine ) sponges are composed of

    1. Choanocytes

    2. Pinacocytes

    3. Amoebocytes

    4. Collar cells

  9. One of the following larval form is formed from Coenoblastula and Stereogastrula and has the phylogenic significance as it is the ancestor of Bilateria. Name the larval form

    1. Amphiblastula

    2. Parencymula

    3. Veliger

    4. Planula

  10. In Hydra the nematocysts are

    1. Penetrant and Glutinent

    2. Penetrant and Volvant

    3. Volvant ant Glutinent

    4. Penetrant only

  11. Physalia is called as “ Portuguse man of war “ since its appearance is similar to that of the ancient ship. Which part of the body gives the appearance

    1. Polyp

    2. Pnematophore

    3. Gasrozooids

    4. Dactylozooids

  12. In which of the Coelenterate, the Planula larva transforms into Ephyra during development

    1. Hydra

    2. Aurelia

    3. Physalia

    4. Sea anemone

  13. The marine coelenterate Alcyonium is commonly called as “ Deadman’s Finger “. It belongs to the class

    1. Hydrozoa

    2. Anthozoa

    3. Scyphozoa

    4. Ctenophora

  14. Choose the incorrect one

Fungia Mushroom coral

Meandrina Brain coral

Madrepora Stag-horn coral

Gorgonia Red coral



  1. In coral formation, the single polyp in the colony is called Corallite and the colony is called Corallum. The Corullum is formed of

    1. Silica

    2. Calcium carbonate

    3. Calcium oxalate

    4. Silica and Calcium carbonate

  2. Some of the common names of marine coelenterates are given below. Pick out the wrong one

a. Sea feather Pennatula

b. Sea pen Virgularia

c. Sea fan Gorgonia

d. Sea flower Fungia



  1. Which place is formed as Coral Island

    1. Lakshadeep

    2. Rameswaram

    3. Fiji

    4. All these

  2. Adamsia, the common sea anemone exhibits Proto co-operation with a crustacian. Name it

    1. Lobuster

    2. Eupagurus

    3. Scacculina

    4. Cyclops

  3. The Ctenophores are commonly called as “ Sea walnuts or Comb jelly “. They possess 8 ciliary bands and Apical sense organs in the body. The peculiar larva of Ctenophores like Pleurobranchia and Ctenoplana is

    1. Rhabditis

    2. Cydippid

    3. Onchophore

    4. Lovens

  4. Name the larval form of Polyclads ( Marine turbellaria – Platyhelminth )

    1. Lovens larva

    2. Planula larva

    3. Cercaria

    4. Muller’s larva

  5. Liver fluke is a parasitic Trematode found in the bile duct of sheep. It is a hermaphrodite with cross fertilization and the “ Laurer’s “ canal receives the sperm. The “ Mehlis glands present in the reproductive system is concerned with

    1. Shell secretion

    2. Activation of sperm through secretion

    3. Attracts sperms through secretion

    4. Makes sperms as a clump

  6. The body cavity of platyhelminthes is acoelom and is filled with

    1. Coelomic fluid

    2. Colourless blood

    3. Parenchyma cells

    4. Tissue fluid

  7. Fasciola hepatica, the liver fluke is a digenetic parasite and its intermediate host is the pond snail Limnea. The larval stages of Fasciola occurs in the order

    1. Miracidium – Redia – Cercaria – Metacercaria

    2. Redia – Cercaria – Metacercaria – Miracidium

    3. Miracidium – Cercaria – Redia – Metacercaria

    4. Metacercaria – Miracidium – Redia – Cercaria

  8. Blood fluke, Schistosoma lives in

    1. Portal, Pelvic and Visceral veins of man

    2. Lymph glands

    3. Sinisoids of liver

    4. Spleen

  9. Taenia solium is the common Pig tape worm and its body has many Proglottids. The anterior segments contain male reproductive organs and middle segments contain fully developed reproductive organs. The hind segments called Gravid segments contain

    1. Fertilized eggs

    2. Unfertilized eggs

    3. Gametes

    4. Hexacanth embryo

  10. Hexacanth embryo or Onchosphere with 6 hooks is the infective stage of Tape worm. Which of the following statement is correct

    1. Hexacanth embryo enters the body of man through the skin

    2. Hexacanth embryo enters the pig and becomes Cysticercus or Bladder worm

    3. Hexacanth embryo has no covering and dies if it remains in the soil

    4. Hexacanth embryo remains in the body of man for long periods

  11. Which is the larval form of Ascaris

    1. Rhabditis

    2. Rhabditiform

    3. Hydatid

    4. Miracidium

  12. In the life history of Ascaris, the larva shows migration through various organs and the last larval moulting takes place in the heart. Pickout the correct sequence of “Extra intestinal migration “.

    1. Intestine – Liver – Heart – Lungs – Intestine

    2. Stomach – Oesophagus – lungs – intestine

    3. Intestine – Liver – Lungs – Heart – Intestine

    4. Intestine – Duodenum – Stomach – Heart

  13. The common Hook worm Ancylostoma duodenale lives in the Jejunum of man. Its infection occurs through the skin of foot and enters the Lymph vessels and shows extra intestinal migration. Which larval form is found in Hook worm

    1. Rhabditis and Filariform larva

    2. Rhabditis and Onchophore larva

    3. Rhabditis only

    4. Onchophore only

  14. Filarial infection leads to Elephantiasis and the preliminary symptom is periodic fever. It is due to

    1. Toxin form the parasite

    2. Blocking of lymph

    3. Secondary infection by Steptococcus or Staphylococcus

    4. Production of excess WBC

  15. Heteronereis is the sexual form which has two regions namely Epitoke and Atoke in the body. It lays eggs after “ Swarming “ and the eggs develop into

    1. Veliger

    2. Trochophore

    3. Hydatid

    4. Glochidium

  16. Which animal is commonly called as “ Sea Mouse “

    1. Tomopteris

    2. Chaetopteris

    3. Aphrodite

    4. Polynoe

  17. Green glands are the excretory organs of Prawn which are located

    1. at the base of Antennules

    2. at the base of antennae

    3. near the stomach

    4. at the base of thelycum

  18. Hepatopencreas is the digestive gland of prawn and is analogous to human

    1. Pancres

    2. Liver

    3. Gastric gland

    4. Intestinal glands

  19. Biramous appendage is the typical appendage of prawn. How many appendages are present in prawn

    1. 12 pairs

    2. 6 pairs

    3. 19 pairs

    4. 14 pairs

  20. Petasma is the modified first abdominal appendage of Prawn used to transfer the sperms in the female receptacle called Thelycum located below the

    1. first abdominal segment

    2. last abdominal segment

    3. last thoracic segment

    4. first thoracic segment

  21. Which of the following animal is used in ayurvedic treatment

    1. Hirudinaria granulose

    2. Hirudo medicinalis

    3. Haemodipsa

    4. Cattle leech

  22. Botryoidal tissue is present in the body cavity of Hirudinaria and this animal has …… number of body segments

    1. 20

    2. 23

    3. 26

    4. 33

  23. Polygordius is a fresh water Archiannelid without parapodia and with syncytial epidermis. It is a marine burrowing form and its larval form is

    1. Mullers larva

    2. Veliger larva

    3. Lovens larva

    4. Glochidium larva

  24. Pick out the incorrect pair

a. Daphnia Water flea

b. Streptocephalus Fairy shrimp

c. Lepas Goose barnacle

d. Cyclops Rock barnacle



  1. Sacculina is a parasitic crustacean exhibiting Parasitic castration in which it changes the sex of male crab ( host ) into female. Sacculina is the example for the extreme degeneration of body parts due to parasitic mode of life. The nauplius larva of Sacculina that enters to the blood of crab and becomes

    1. Cypris and Kentrogen

    2. Metanauplius and Zoea

    3. Zoea and Cypris

    4. Kentrogen and Zoea

  2. The typical larva of crab is

    1. Cypris

    2. Zoea

    3. Megalopa

    4. Meta nauplius

  3. Which is the larval form of Squilla

    1. Nauplius

    2. Bipinnaria

    3. Alima

    4. Echinopluteus

  4. Peripatus belongs to the class Onychophora and is evolutionary significant. Which of the following makes it for a good tool for the study of evolution

    1. Discontinuous distribution and found only in Himalayan valley, Burma and Srilanka

    2. Connecting link between Annelida and Arthropoda

    3. Living fossil retaining the primitive characters

    4. All these

  5. The Centipede Scolopendra is a highly carnivorous nocturnal animal and it kills the animals by injecting toxins called

    1. Formic acid

    2. Hirudin

    3. Hylaronidase

    4. Venom




  1. Cochroach and Prawn have Compound eyes with Ommatidia. The image formed in the compound eyes during day light is

    1. Mosaic image

    2. Apposition image

    3. Mosaic and Apposition images

    4. Clear image

  2. Dragon fly is a carnivorous insect and its aquatic nymph is called

    1. Maggot

    2. Caterpillar

    3. Wriggler

    4. Niad

  3. Cicada produces sound using

    1. Wings

    2. Legs

    3. Antennae

    4. Opercula

  4. Tachardia lacca is the Lac insect giving Shell-lac. Another economically important insect Cochineal insect produces

    1. Silk

    2. Dye

    3. Honey

    4. Pheromone

  5. Bombyx mori is the Mulberry silkworm producing high quality Silk. The silk is formed of proteins Fibroin and Sericin. Which of the following is a Non- Mulberry silk worm

    1. Eri

    2. Tasar

    3. Muga

    4. All these

  6. Honey bee queen is the only fertile female in the bee hive and it produces a pheromone called “ Queen’s substance” to attract other bees to maintain the hive. Honey is formed by mixing nectar and saliva in the crop of worker bees. Which of the following variety is used as domestic Honey bee

    1. Apis dorsata

    2. Apis florae

    3. Apis indica

    4. Apis mellifera

  7. In Mosquitoes only the anterior pair of wings is functional and the posterior pair is rudimentary. It is called

    1. Vestigeal wings

    2. Pseudo wings

    3. Halters

    4. None of these




  1. Pick out the incorrect statement

    1. Mouth parts of Honey bee is Siphoning type

    2. Mouthparts of Mosquito is Piercing and Sucking

    3. Mouth parts of House fly is Sponging type

    4. Mouth parts of Flea is Piercing and Siphoning type

  2. Which of the following Arthropod has 4 pairs of legs

    1. Butterfly

    2. Stick insect

    3. Peripatus

    4. Spider

  3. Xenopsilla is the Rat flea spreading the germ Pasteurella pestis causing Bubonic plague . A similar flea is found biting man also. It is

    1. Tick

    2. Mite

    3. Pulex

    4. Cimex

  4. Limulus the “ King crab “ has evolutionary significance as it a Living Fossil and shows discontinuous distribution. It is a Viviparous Arachnid giving birth to a larva called

    1. Zoea

    2. Nauplius

    3. Trilobite

    4. Ammocoetus

  5. Itch Mite causes “ Scabies “ in man and Ticks lives in man as

    1. Endoparasite

    2. Ectoparasite

    3. Symbiont

    4. Commensal

  6. Which Molluscs is considered as Living fossils

    1. Pila and Unio

    2. Teredo and Solen

    3. Monoplacophora and Neoplina

    4. Neoplina and Chiton

  7. The Rotifers commonly called as “ Wheel Amnimalcules “ belongs to the phylum

    1. Annelida

    2. Arthropoda

    3. Aschelminthes

    4. Mollusca

  8. One of the following animal belongs to the class Amphineura of Phylum Mollusca and has the important characters like 8 plates in the shell, dorso ventrally compressed body and flat sole like foot.

    1. Dentalium

    2. Chiton

    3. Pila

    4. Fresh water mussel

  9. Which animal is popularly called as “ Elephants tusk shell “

    1. Chiton

    2. Solon

    3. Dentalium

    4. Nautilus

  10. “Adductor muscles” in Mussels are used to close the bivalved shell and “Osphradium” is used as sense organ to detect the purity of water. Which of the following organ is excretory in Bivalves.

    1. Malpighian tubules

    2. Organ of Bojanus and Keber’s organ ( Pericardial gland )

    3. Nephridia

    4. Solenocytes

  11. In Bivalves like Pearl Oysters ( Pinctada vulgaris ) the pearl is secreted from ……. Layer of shell

    1. Periostracum

    2. Prismatic

    3. Nacreous

    4. Mantle

  12. Mytilus is the marine Mussel and Lamellidens is its freshwater relative. Which larval form of Bivalves leads a parasitic mode of life beneath the scales of fishes.

    1. Veliger

    2. Trochophore

    3. Glochidium

    4. Planula

  13. “Torsion” is the asymmetric arrangement of internal organs in Gastropod Molluscs. Gastopods usually respire using Ctenidia( gills ) and Pulmonary sacs ( lungs ). Due to the presence of areal and aquatic respirations, some Molluscs are Amphibious. Which one is it.

    1. Fresh water mussel

    2. Pila globosa

    3. Pinctada vulgaris

    4. Haliotis

  14. The common names of some important Molluscs are listed below. Select the incorrect pair

a. Limpet Patella

b. Sea hare Aplysia

c. Ear shell Haliotis

d. Pond snail Pila globosa



  1. Cephalopods are Molluscs with head modified for locomotion. One of the following Cephalopod found in Indian and Pacific ocean has many chambered shell and is a Living Fossil. Select it.

    1. Octopus

    2. Nautilus

    3. Loligo

    4. Sepia

  2. Echinoderms are Radially symmetrical animals with Bilaterally symmetrical larvae. They use Pedicellaria to clean the body surface and Tube feet for locomotion, respiration and feeding. They have Mandriporite on the dorsal side of the body for the entry of water in the Water vascular system. Which are the larval forms of echinoderms like Sea urchin and Brittle star respectively.

    1. Echinopluteus and Ophiopluteus

    2. Echinopluteus and Bipinnaria

    3. Ophiopluteus and Tornaria

    4. Bipinnaria and Tornaria

  3. “Aristotle’s Lantern” is found in Sea Urchins and are used as

    1. Excretory organ

    2. Masticatory organ

    3. Reproductive organ

    4. Locomotory organ

  4. Brittle stars show extreme power of Regeneration and Sea cucumber shows “Eviceration”. What is the mechanism behind Evisceration

    1. Regeneration

    2. Removal of internal organs

    3. Removal of external organs

    4. Autotomy of body parts

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