Classification of Animals MCQs Part IV

1) Taenia solium is found in the
a) Duodenum
b) Small intestine
c) Large intestine
d) Rectum

2) In Platyhelminthes, the excretory organs are
a) Nephridia
b) Nephrons
c) Solenocytes
d) Archeocytes

3) Planaria, liver fluke and Taenia solium are
a) All segmented
b) All found in the gut
c) All coelomate
d) All flatworms

4) Platyhelminthes represent an example of
a) Cellular grade of organization
b) Tissue grade of organization
c) Organ-system grade of organization
d) None of the above

5) Taenia saginata differs from T.Solium in the absence of
a) Scolex
b) Suckers
c) Hooks
d) None

6) Schistosoma is a parasite in the
a) Lung & Kidney
b) Liver & Bile duct
c) Intestine & stomach
d) Blood of man

7) Reproductive system of parasitic helminthes is
a) Simple
b) Developed
c) Well developed & complicated
d) Vestigial

8) The free swimming larva that emerges from the egg of schistosoma is the
a) Redia
b) Cercaria
c) Sporocyst
d) Miracidium

9) The bladder worm is also known as
a) Onchosphere
b) Cysticercus
c) Sporocyst
d) Hexacanth

10) Onchosphere possesses
a) 13 hooks
b) 6 hooks
c) 10 hooks
d) 4 hooks

11) Anaerobic respiration is found in
a) Earthworm
b) Termites
c) Taenia
d) Hirudo

12) In Taenia fertilization is
a) Self fertilization in same proglottid
b) Cross type between proglottids of same taenia
c) Cross type between proglottids of different taenia
d) None of the above

13) Rhabdites are found in
a) Fasciola
b) Taenia
c) Planaria
d) All

14) Regeneration is remarkable in planaria due to presence of
a) Neoblast cells
b) Sporoblast cells
c) Mesenchymal cells
d) Reproductive cells

15) Sexual dimorphism is found in
a) Taenia solium
b) Fasciola hepatica
c) Schistosoma haematobium
d) None

16) Sperms are received in Taenia during copulation by the
a) Vagina
b) Ootype
c) Oviduct
d) Seminal receptacle

17) In the scolex of Taenia solium
a) Only suckers are present
b) Suckers and hooks are both present
c) Only hooks are present
d) Neither suckers nor hooks are found

18) The posterior sucker in Fasciola is the
a) Oral sucker
b) Acetabulum
c) Head lobe
d) None

19) A gynaecophoric groove is present in
a) Fasciola
b) Taenia
c) Schistosoma
d) Planaria

20) The intermediate host of Taenia saginata is
a) Cat
b) Dog
c) Pig
d) Cattle

21) Laurer’s canal
is found during the breeding season in

a) Taenia
b) Ascaris
c) Filaria worm
d) Fasciola

22) The study of worms causing parasitic infestation in humans is
a) Malacology
b) Helminthology
c) Ichthyology
d) Herpetology

23) All worms are
a) free-living
b) parasites
c) triploblastic
d) marine

24) Flatworms resemble coelenterates in
a) Body plan
b) Symmetry
c) The number of germ layers
d) Parasitism

25) The body is unsegmented in
a) Planaria
b) Ascaris
c) Schistosoma
d) All of these

26) Flame cells are associated with
a) Excretion
b) Respiration
c) Digestion
d) Nutrition

27) Turbellarians are
a) Parasitic nematodes
b) Free-living flatworms
c) Parasitic trematodes
d) Free-living nematodes

28) Pseudometamerism is found in
a) Fasciola
b) Taenia
c) Planaria
d) Ascaris

29) Regeneration can best be described as the
a) Removal of unwanted parts
b) Deformation of lost parts
c) Rehealing of a wound
d) Replacement of lost parts

30) Pharynx can be everted in
a) Planaria
b) Liver fluke
c) Tapeworm
d) None

31) Which of the following is not a parasite?
a) Schistosoma
b) Wuchereria
c) Echinococcus
d) Dugesia

32) In the life-history of liver fluke one comes across the following stages:
1.Cercaria 2. Metacercaria 3. Miracidium 4. Redia 5. Sporocyst
Which of the following is the proper sequence in its life-history?

a) 3-5-4-2-1
b) 3-5-1-2-4
c) 3-5-4-1-2
d) 3-4-5-1-2

33) Suckers in the tapeworm help in
a) Locomotion
b) Attachment
c) Sucking nourishment
d) Cleaning the mucosa of host

34) “There is no alimentary canal in Taenia because it is a parasite”.
a) Both the statement and reason are true, and the reason is the correct explanation for
the statement

b) Both the statement and reason are true, the reason is not the correct explanation
c) The statement is true but the reason is false
d) Both are false

35) Which of the following is not a hermaphrodite?
a) Tapeworm
b) Liver fluke
c) Blood fluke
d) Sporocyst

36) A bladderworm is the
a) Larva of a silk moth
b) Larva of taenia
c) Common name of Ascaris
d) Urine containing sac

37) Which of the following infests the snail in the life-cycle of Fasciola?
a) Cercaria
b) Redia
c) Miracidium
d) Metacercaria

38) In tapeworm the vitelline gland produces
a) Shell
b) Ova
c) Mucous cells
d) Yolk cells

39) The number of excretory pores that open outside when the last proglottid
of the tapeworm is separated is

a) One
b) Two
c) Three
d) Four

40) Taenia solium derives its energy from the break down of
a) Nucleic acid
b) Amino acid
c) Glycogen
d) Glycerol

41) A branched uterus containing fertilized capsules can be seen in tapeworm in the
a) Immature proglottid
b) Mature proglottid
c) Gravid proglottid
d) Immediately below neck

42) A mature proglottid of Taenia is one which has
a) Only female reproductive organs
b) Both female and male reproductive organs
c) Only eggs and degenerated reproductive organs
d) Hexacanth embryos

43) Which most vital system is absent in tapeworm?
a) Digestive system
b) Nervous system
c) Excretory system
d) Reproductive system

44) The principal physiological adaptations in parasitic flatworms are
a) Anaerobic respiration and osmoregulation
b) High fertility
c) Secretions of anti-enzymes
d) All of the above

45) Which of the following statements in regard to Taenia saginata is

a) It has a double circle of hooks on the rostellum
b) Its life-history involves the pig as an intermediate host
c) It has two large suckers on the scolex
d) It has no rostellar hooks

46) An individual exhibiting both male and female sexual characteristics in
the body is known as:

a) Intersex
b) Hermaphrodite
c) Bisexual
d) Gynandromorph

47) The reserve food in the shell of the embryonated egg is
a) Glucose
b) Glycogen
c) Protein
d) Fat

48) The pseudocoel is a derivative of the
a) Blastocoel
b) Archenteron
c) Neurocoel
d) Paragastric cavity

49) Syncytial ectoderm and pseudocoelomate condition is found in
a) Earth worm
b) Tape worm
c) Ascaris
d) Leech

50) The method of transmission in Enterobius vermicularis is
a) Contamination
b) Congenital
c) Inoculative
d) By vector

51) The space between the body wall and the alimentary canal of Ascaris is the
a) Pseudocoelom
b) Coelom
c) Acoelom
d) None

52) The common name of Ancylostoma is
a) Pin worm
b) Round worm
c) Filaria worm
d) Hook worm

53) The male Ascaris can be distinguished by its
a) Presence of suckers
b) Elongated body
c) Curved tail with pineal spicules
d) Tapering tail with pineal spicules

54) Pineal setae arise from the
a) Vulva of the female Ascaris
b) Roof of the diencephalon
c) Cloaca of an amphibian
d) Cloaca of the male roundworm

55) In Ascaris the thick cuticle is an adaptation for
a) Parasitism
b) Locomotion
c) Growth
d) Reproduction

56) In Ascaris, the excretory organs are
a) Nephricia
b) Kidneys
c) Excretory cell (Renett cell)
d) Flame cells

57) Which disease is caused by a nematode?
a) Amoebiasis
b) Filariasis
c) Poliomyelitis
d) Leprosy

58) During development, the Ascaris needs
a) One intermediate host
b) Two intermediate hosts
c) Several intermediate hosts
d) No intermediate host

59) Microfilariae refer to the
a) Larva of Tse-Tse fly
b) Female Wuchereria
c) Live embryo of Wuchereria
d) None of the above

60) In Ascaris
a) Flame cells are enormous
b) Flame cells are normal
c) Flame cells are less
d) Flame cells are absent

61) Ascaris cuticle is chemically
a) Protein
b) Carbohydrate
c) Lipid
d) None

62) The fibrous process of the muscle cells of Ascaris are connected to
a) Dorsal nerve cord
b) Ventral nerve cord
c) Lateral lines
d) Both A and B

63) The stomach in Ascaris is
a) Well developed
b) Poorly developed
c) Absent
d) None

64) Anal papillae are absent in the
a) Male Ascaris
b) Female Ascaris
c) Both
d) None

65) The migration of microfilariae in the blood from the lymph is
a) To lay eggs
b) To die
c) For transmission
d) For copulation

66) In Ascaris, the excretory pore is
a) One
b) Two
c) Absent
d) None

67) Ascaris is
a) Hermaphrodite
b) Monoecious
c) Bisexual
d) None

68) One of the following is caused by nematodes:
a) Amoebiasis
b) Filariasis
c) Cholera
d) Leprosy

69) All roundworms differ from flatworms in having
a) Nerves
b) Muscles
c) Blood
d) A body cavity

70) A pseudocoelom is present in
a) Pinworms
b) Flatworms
c) Nereis
d) Both A and B

71) The body of Ascaris is rounded and
a) Bilaterally symmetrical
b) Radially symmetrical
c) Asymmetrical
d) None

72) Culex spreads one of the following
a) Ascaris larvae
b) Trypanosomes
c) Filaria worm
d) All the above

73) The food of Ascaris includes
a) Partially or fully digested food
b) Undigested food
c) Decaying organic matter
d) Broken mucus layer of wall

74) Which of the following is an animal with syncytial epidermis and pseudocoelomate condition?
a) Ascaris
b) Prawn
c) Taenia
d) Leech

75) “Tube within a tube” first evolved in
a) Tapeworms
b) Roundworms
c) Flukes
d) Earthworms

76) Through which agency is Ascaris infection transmitted/
a) Air
b) Housefly
c) Tsetse fly
d) None

77) One of the following characteristics is not found in Nematoda:
a) Hermaphroditism
b) Elongated body
c) Cell constancy
d) Pseudocoel

78) The body plan in a roundworm is
a) Cell aggregate
b) Blind sac
c) Tube within a tube
d) None

79) Ascaris counteracts the peristaltic activity of the
intestine by its

a) Sinous movement
b) Serpentine movement
c) Undulating movement
d) Brownian movement

80) The lateral line cords of Ascaris contain
a) Excretory canals
b) Flame cells
c) Fonoducts
d) Nerve cords

81) Female Ascaris is identified on the basis of its
a) Common cloacal aperture
b) Straight posterior end
c) Presence of preanal and postanal papillae
d) Presence of two spicules at the posterior end

82) Female Ascaris differs from the male in having
a) Pineal setae
b) A longer body
c) A curved tail
d) None of these

83) The roundworm can be called specialized and not degenerate with reference
to parasitism because

a) It has no respiratory organs
b) It is dioecious
c) It has a straight, uncoiled alimentary canal
d) The cuticle over its body wall is resistant to digestive juices of the host

84) Beneath the cuticle in Ascaris lies a thin epidermis having scattered
nuclei and no separate cell. This epidermis is

a) Syncytial
b) Aseptate
c) Multicellular
d) None of these

85) The mouth of Ascaris is guarded by
a) Labia
b) Labrum
c) Rostellum
d) Peristomium

86) Sexual dimorphism is found in
a) Hydra
b) Ascaris
c) Fasciola
d) Earthworm

87) Which metazoan parasite is spread by faecal contamination?
a) Plasmodium
b) Schistosoma
c) Ascaris
d) Wuchereria

88) Name the nematode parasite whose juvenile enters the human body by active

a) Hookworm
b) Filarial worm
c) Pinworm
d) Guinea worm

89) Wuchereria is a kind of
a) Bacterium
b) Helminth
c) Protozoa
d) Mosquito

90) Wuchereria bancrofti is transmitted by
a) Culex
b) Anopheles
c) Tsetse fly
d) Sandfly

91) Filariasis is caused by a type of
a) Insect
b) Protozoan
c) Roundworm
d) Tapeworm

92) The causative organisms of which disease is studied from the peripheral
blood during night time?

a) Malaria
b) Filariasis
c) Itches
d) Nephritis

93) The correct matching of causative agent/germ and disease is:
a) Anopheles-Malaria
b) Leishmania-Sleeping sickness
c) Glossina-kala-azar
d) Wuchereria-Filariasis

94) A viviparous nematode is
a) Filaria
b) Enterobius
c) Ascaris
d) Trichinella

95) Pinworm of man is found in the
a) Colon and rectum
b) Stomach
c) Oesophagus
d) Lymphatic vessels

96) Dracunculus medinensis is commonly called the
a) Guinea worm
b) Seatworm
c) Pinworm
d) Hookworm

97) A digenetic nematode parasite is
a) Fasicola
b) Filaria
c) Ancylostoma
d) Enterobius

98) The sequence of layers of body wall in Ascaris is
a) Cuticle-epidermis-longitudinal muscle layer
b) Cuticle-epidermis-circular muscle layer
c) Cuticle-epidermis-longitudinal muscle layer-circular muscle layer
d) Cuticle-epidermis-circular muscle layer-longitudinal muscle layer

99) One of the following is common to the earthworm and the cockroach:
a) Double, solid and ventral nerve cord
b) Presence of Nephridia
c) Equal body segments
d) Presence of hemoglobin in blood

100) Which is correct about the earthworm?
a) Has a brain but no head
b) Has no locomotory organs
c) Secretes a cocoon around unfertilized eggs
d) Can crawl on a smooth surface easily


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