Classification of Animals MCQs Part VII

1) Thirteen hearts are present in the
a) Centipede
b) Cockroach
c) Millipede
d) All

2) Retinal cells surround the
a) Rhabdome
b) Cone
c) Both
d) None

3) The number of ovarioles in the ovary of a cockroach are
a) Five
b) Ten
c) Eight
d) Twelve

4) Vision in the compound eye of insects is
a) Monocular
b) Binocular
c) Mosaic
d) Superposition

5) The collateral gland in cockroach is
a) Well developed
b) Poorly developed
c) Absent
d) None

6) Fertilization in cockroaches is
a) Internal
b) External
c) Both
d) None

7) The spermatheca in cockroaches is associated with the
a) Male reproductive organs
b) Female reproductive organs
c) Excretory organs
d) None

8) Glucose in cockroaches is absorbed by the
a) Hepatic ceacae
b) Malphigian tubule
c) Intestine
d) All

9) Formic acid is obtained from
a) Red ants
b) Bed bugs
c) Crickets
d) Wasps

10) The second instar of housefly has
a) An anterior spiracle
b) A posterior spiracle
c) Both
d) One

11) In cockroaches blood enters the heart through the
a) Aorta
b) Pericardium
c) Vein
d) Lateral ostia

12) The chief larva in crustaceans is the
a) Nauplius larva
b) Muller’s larva
c) Pluteus
d) Bipinnaria

13) Millipedes are
a) Herbivorous
b) Carnivorous
c) Omnivorous
d) Nocturnal

14) One of these is an asexual female:
a) Queen bee
b) Drone
c) Worker bee
d) All

15) One of the following has a sting:
a) Worker
b) Queen
c) Both
d) None

16) In bees the wax gland is present on the
a) Head
b) Thorax
c) Abdomen
d) All

17) In cockroaches the spiracles are absent in the
a) Head region
b) Prothorax
d) All

18) The number of paired appendages in the prawn are
a) Ten pairs
b) Fifteen pairs
c) Nineteen pairs
d) None

19) Water flea is the common name of the
a) Dragon fly
b) Prawn
c) Cyclops
d) Daphnia

20) The fresh water prawn is
a) Penaeus
b) Palaemon
c) Lobster
d) Squilla

21) Saliva of cockroach contains
a) Trypsin
b) Pepsin
c) Lipase
d) Amylase

22) Radula is typically found in
a) Unio
b) Mytilus
c) Pila
d) All

23) Elephant tusk-shell is
a) Limax
b) Dentalium
c) Pila
d) Nautilus

24) The largest invertebrate is
a) Giant squid
b) Giant snail
c) Giant Octopus
d) None

25) Ink gland is found in
a) Pila
b) Mytilus
c) Sepia
d) Pectin

26) The most valuable pearls are obtained from
a) Unio
b) Pinctada
c) Mytilus
d) Meleagrina

27) Sea hare is the common name of
a) Aplysia
b) Unio
c) Teredo
d) Nautilus

28) The respiratory organs in the fresh water mussel are
a) Book lungs
b) Pulmonary sacs
c) Ctenidia
d) All

29) In cuttlefish the number of arms is
a) Eight
b) Ten
c) Many
d) Six

30) The true limpet is
a) Sepia
b) Nautilus
c) Loligo
d) Patella

31) Aplysia is
a) Sea hare
b) Sea fan
c) Sea mouse
d) Sea horse

32) Organ of Bojanus are excretory in function in
a) Annelida
b) Arthropoda
c) Mollusca
d) Echinodermata

33) Class Cephalopoda of Mollusca is related to the following examples:
a) Scorpion and housefly
b) Devilfish and cuttlefish
c) Sea fan & sea pen
d) Sea horse and sea hare

34) An exclusively marine mollusc is
a) Cephalopod
b) Gastropod
c) Bivalve
d) All

35) Nacre is the mother layer of
a) Ink secretion
b) Pearl formation
c) Excretion
d) Hormonal secretion

36) A true pearl is made up of
a) Single piece
b) Two layers
c) Many layers
d) None

37) A shell is absent in
a) Octopus
b) Sepia
c) Nautilus
d) Pila

38) The larva of the fresh water mussel is
a) Glochidium
b) Zoea
c) Bipinnaria
d) Tornaria

39) The shell in Mollusca is produced by the
a) Mantle
b) Shell gland
c) Vitelline gland
d) All

40) Slugs are
a) Bivalves
b) Cephalopods
c) Snail- like molluscs
d) None

41) The Father of the pearl industry in Japan is
a) Mistuchi
b) Mikimoto
c) Kaimeoni
d) Kurasova

42) The respiratory pigment in Mollusca is
a) Haemocyanin in plasma
b) Hemoglobin in blood cells
c) Myoglobin
d) Haemerythrin

43) Cephalopoda is the class of Mollusca in which the
a) Head is on the foot
b) Foot is on the head
c) Head is fused with the thoracic foot
d) Notochord extends upto the head

44) Pila respire
a) In water
b) On land
c) Both
d) None

45) Whorls in a spiral shell are found in
a) Octopus
b) Pila
c) Sepia
d) All

46) The glochidium larva of Unio is
a) An ectoparasite on fish
b) An endoparasite on fish
c) A symbiont
d) A commensal

47) Torsion & detorsion is found in
a) Porifera
b) Mollusca
c) Echinodermata
d) Arthropoda

48) In Mollusca the visceral mass is covered by a
a) Sarcolemma
b) Mantle
c) Pellicle
d) Cuticular chitin

49) The organ of equilibrium in molluscs is the
a) Statocyst
b) Osphradium
c) Lithocyst
d) Ctenidium

50) Culture of Molluscs falls under
a) Piscicullure
b) Sericulture
c) Aquaculture
d) Apiculture

51) The mussel cultured in the Vizhinjam way is
a) Green mussel
b) Brown mussel
c) Freshwater mussel
d) Cuttle fish

52) In ancient days one of the following was used as currency:
a) Pila
b) Octopus
c) Cypraea
d) All

53) Mollusca is classified on the basis of their
a) Shell & foot
b) Nervous system
c) Gills
d) All the above

54) The coelom in mollusca is a
a) Haemocoel
b) Pseudocoel
c) True coelom
d) None

55) The shell of Pila (apple snail) is made up of a single piece: it is
a) Sinistral
b) Sinistral or Dextral
c) Dextral
d) None

56) In Pila aerial respiration takes place by the
a) Pulmonary sac
b) Trachea
c) Ctenidium
d) Book lung

57) Helix is also called the
a) Garden snail
b) Apple snail
c) Water snail
d) None

58) The pericardial gland in Unio is called the
a) Johnston organ
b) Organ of bojanus
d) None

59) Apple snail is also called
a) Unio
b) Pila
c) Helix
d) Limax

60) Malacology is the study of
a) Melanin pigment
b) Mammary gland
c) Molluscans
d) Shells of Mollusca

61) Conchology is the study of the
a) Shells of Mollusca
b) Crabs
c) Chitin of Arthropod
d) Shrimps

62) The most primitive Molluscan is
a) Patella
b) Neoplina
c) Chitin
d) Dentalium

63) Eyes, like that of vertebrates, are found in
a) Octopus
b) Unio
c) Dentalium
d) Pila

64) One of the following is found in Mollusca:
a) Foot
b) Mantle
c) Unsegmented soft body
d) All

65) Hectocotylus is a spoon-shaped arm for
a) Sperm transfer
b) Attacking
c) Locomotion
d) None

66) Pearls are formed by the
a) Osphradium
b) Radula
c) Nacre of the mantle
d) All the above

67) One of the organs of a cephalopod resemble the organ of a vertebrate:
a) Eye
b) Brain
c) Gill
d) Heart

68) One of the following is found in Mollusca:
a) Madreporite
b) Tube feet
d) Ctenidia

69) Highly evolved molluscs are
a) Gastropods
b) Scaphopods
c) Cephalopods
d) None

70) The rock borer is a mollusc known as
a) Pholas
b) Pinctada
c) Solen
d) Sepia

71) Window pane oyster is
a) Planorbis
b) Placuna
c) Platypus
d) Mantis

72) The two longer arms in sepia are known as
a) Hectocotyle
b) Tentacles
c) Pedicles
d) None

73) The shell is internal in
a) Octopus
b) Sepia
c) Pila
d) Chiton

74) Shell is tubular and opens at both ends in
a) Nautilus
b) Pila
c) Mytilus
d) Dentalium

75) Molluscs are closely related with
a) Echinoderms
b) Annelids
c) Arthropods
d) Chordates

76) The most primitive nervous system is found in
a) Monoplacophora
b) Scaphopoda
c) Gastropoda
d) Bivalvia

77) The chief component of a pearl is
c) Chitin
d) Conchiolin

78) A bivalve shell is found in
a) Gastropoda
b) Scaphopoda
c) Pelecypoda
d) Cephalopoda

79) Spiral shell is found in
a) Pila
b) Unio
c) Mytilus
d) Sepia

80) The shell is chambered in
a) Unio
b) Dentalium
c) Nautilus
d) All

81) The largest group of Mollusca is
a) Gastropoda
b) Cephalopoda
c) Pelecypoda
d) Amphineura

organ is an associated part of

a) Stomach
b) Kidney
c) Pericardium
d) Ctenidium

83) The byssus is found in the
a) Glochidium larva
b) Trochophore larva
c) Bipinnaria larva
d) Pluteus larva

84) Gills are absent in
a) Prawns
b) Dentalium
c) Pila
d) Unio

85) Asymmetry in the gastropoda is due to
a) Coiling
b) Torsion
c) Turning
d) Bending

86) In snails the mantle cavity is pushed forward and outwards due to
a) Torsion
b) Fast swimming
c) Symmetry
d) None

87) The operculum is secreted by the
a) Glands of the mantle
b) Crystalline style
c) Glands of the foot shell
d) Shell

88) The cavity between the mantle & body is known as the
a) Pseudocoel
b) Mantle cavity
c) Enterocoel
d) Lacune

89) Aestivation is exhibited by
a) Unio
b) Pila
c) Octopus
d) Sepia

90) Haemoglobin is found in the blood of
a) Solen
b) Arca
c) Earthworm
d) All

91) Neopilina is a connecting link between
a) Annelida and Arthropoda
b) Annelida and Mollusca
c) Reptiles and birds
d) Echinoderms and chordates

92) Mantle is also known as
a) Pallium
b) Nacre
c) Ctenidium
d) None

93) The phylum name “Mollusca” means
a) Shelled animals
b) Aquatic animals
c) Soft bodied animals
d) Mantle bearers

94) The largest phylum next to arthropoda in number of species is
a) Helminthes
b) Echinodermata
c) Chordata
d) Mollusca

95) The metallic ion contained in the blood of mollusca is
a) Iron
b) Copper
c) Magnesium
d) Zinc

96) Haemocyanin, the blue colouring pigment of molluscan blood contains
a) Iron
b) Magnesium
c) Copper
d) Manganese

97) Ctenidia in molluscs are
a) Excretory organs
b) Respiratory organs
c) Protective organs
d) Reproductive organs

98) Closed circulatory system does not occur in
a) Cockroach
b) Cuttle fish
c) Snail
d) All the above

99) Trochophore larva occurs in
a) Annelida and Porifera
b) Annelida and Mollusca
c) Mollusca and coelenterata
d) Coelenterata and annelida

100) Which of the following is not a larval form of Mollusca?
a) Pluteus
b) Trochophore
c) Veliger
d) Glochidium



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