Classification of Animals MCQs Part V

1) Earthworms respire by
a) Ctenidia
b) Moist skin
c) Clitellum
d) Typhlosole

2) The blood pigment of earthworms is
a) Hemoglobin
b) Haemocyanin
c) Haemoerythrin
d) Chlorocruorin

3) The excretory organs in earthworms are
a) Body wall
b) Flame cells
c) Nephridia
d) Malpighian tubules

4) Blood is red but there are no R.B.C. in
a) Earthworms
b) Cockroach
c) Birds
d) Reptiles

5) Earthworm is known to possess
a) Lateral hearts
b) Lateral ventricles
c) Lateral spiracles
d) Spiracles

6) Earthworms are mainly
a) Ureotelic
b) Aminotelic
c) Ammonotelic
d) Uricotelic

7) The flow of blood in the dorsal vessel of earthworms is
a) Backwards
b) Forwards
c) Backwards and forwards both
d) None of these

8) The blood vascular system of the earthworm is of
a) Open type
b) Closed type
c) Portal type
d) None of these

9) The lateral esophageal hearts in the earthworm connect the
a) Dorsal vessel to the ventral vessel
b) Dorsal vessel to the suboesophageal vessel
c) Dorsal vessel to the subneural vessel
d) Lateral esophageal vessel to the subneural vessel

10) The function of spermathecae in earthworms is to
a) Receive spermatogonia for maturation
b) Receive fertilized ova for embryonic development
c) Secrete substances that form the cocoons
d) Receive sperms in copulation for storage

11) Which is correct regarding earthworms?
a) It has no locomotory organs
b) It has no brain
c) Fertilization takes place outside the body in the cocoon
d) It has an open lacunar blood vascular system

12) In earthworms the following help in locomotion:
a) Chloragogen cells
b) Parapodia
c) Clitellum
d) Setae

13) Which of the following statements is correct/
a) The blood of earthworms is blue in colour
b) The blood pigment of earthworms is haemocyanin
c) The blood pigment of earthworms is red and haemoglobin is dissolved in plasma
d) The blood of earthworms is red and haemoglobin is dissolved in RBC

14) The earthworm is useful because it
a) Helps in fixing atmospheric nitrogen
b) Helps in making the land solid
c) Kills harmful bacteria in the soil
d) Helps in making the land fertile by turning the soil over

15) Chloragogen cells are found in the
a) Blood of the earthworm
b) Coelomic fluid of the earthworm
c) Blood of cockroach
d) Body wall of Leucosolenia

16) The number of segments in the leech is
a) 26
b) 33
c) 44
d) 120

17) A true coelom is found in
a) Hydra
b) Neanthes
c) Euspongia
d) Paramecium

18) The true coelom is formed from the
a) Blastocoel
b) Endoderm
c) Mesoderm
d) Ectoderm

19) Nereis is
a) Aquatic
b) Marine
c) Amphibious
d) Terrestrial

20) Which animal is poikilothermic?
a) Hirudinaria
b) Pheretima
c) Nereis
d) All of these

21) The typhlosole serves for
a) Nutrition
b) Excretion
c) Increasing the absorptive surface
d) Absorption

22) The anal segment of Nereis is called
a) Pygostyle
b) Pygidium
c) Anal cercus
d) All of these

23) Parapodia in Nereis are not found in
a) Prostomium
b) Peristomium
c) Both
d) None

24) The earthworm is
a) Herbivorous
b) Carnivorous
c) Parasitic
d) Detritivorous

25) The gizzard in an earthworm serves for
a) Crushing food
b) Secreting slime
c) Absorbing digested food
d) Excretion

26) In the earthworm the first segment is the
a) Prostomium
b) Peristomium
c) Ophistomium
d) None

27) In Pheretima sperms are stored in the
a) Seminal receptacles
b) Testes
c) Spermathecae
d) Prostate glands

28) Which one is a bisexual animal?
a) Leech
b) Ascaris
c) Honeybee
d) Housefly

29) The type of respiration in the earthworm is
a) Pulmonary
b) Cutaneous
c) Pulmocutaneus
d) None

30) The septal nephridia of the earthworm open
a) Outside
b) Into the alimentary canal
c) Into the coelom
d) All the above

31) Annelids are:
a) Radially symmetrical
b) Only externally segmented
c) Diploblastic
d) Triploblastic

32) The earthworms move with the help of:
a) Setae, muscles and the hydrostatic skeleton
b) Setae alone
c) Muscles alone
d) Parapodia

33) Botryoidal tissue is found in:
a) Pila
b) Ascaris
c) Hirudinaria
d) Nereis

34) A larval stage and metamorphosis do not occur in the life cycle of:
a) Ascaris
b) Earthworm
c) Frog
d) Fasciola

35) Nereis is:
a) Ureotelic
b) Uricotelic
c) Ammonotelic
d) Nephrotelic

36) Tactile, taste and smell functions are performed in Nereis by the:
a) Prostomial Tentacle
b) Prostomial Palps
c) Peristomial tentacles
d) Nuchal organs

37) Nereis swarms during:
a) Day
b) Moon
c) Evening
d) Night

38) An organ in the earthworm analogous to the kidney is the:
a) Ovary
b) Testis
c) Nephridium
d) Clitellum

39) One of the following is an anticoagulant in the leech:
a) Haemoglobin
b) Heparin
c) Dieumesal
d) Hirudin

40) The segment of the earthworm bearing the mouth is:
a) Clitellum
b) Peristomium
c) Prostomium
d) Deuterostomium

41) The sanguivorous habit is found in:
a) Pheretima
b) Neanthes
c) Nereis
d) Leech

42) The carnivorous habit is found in:
a) Nereis
b) Pheretima
c) Hirudinaria
d) Chaetopterus

43) A suctorial mouth is present in:
a) Leech
b) Nereis
c) Earthworm
d) Amphioxus

44) Metamorphosis is absent in:
a) Taenia
b) Frog
c) Housefly
d) Earthworm

45) If the skin of earthworm dries out, it dies due to:
a) Dehydration
b) Asphyxia
c) Toxicity
d) Starvation

46) Self fertilization in earthworms is checked due to:
a) Progyny
b) Protandry
c) Mechanical reasons
d) None

47) In some leeches the blood is
a) Red
b) Colourless
c) Yellow
d) Green

48) One of the following is not found in the earthworm:
a) Setae & nephridia
b) Blood gland and lymph gland
c) Botryoidal tissue & coelom
d) All the above

49) The power of regeneration in the earthworm is:
a) Least
b) Great
c) Absent
d) None

50) The land leech which lives in damp places is:
a) Hirudinaria
b) Hirudo
c) Nereis
d) Haemodipsa

51) The paddle worm is:
a) Chaetopterus
b) Nereis
c) Hirudo
d) Sabella

52) Loven larva is formed during the development of
a) Nereis
b) Hirudo
c) Polygordius
d) Lumbricus

53) The posterior sucker of the leech is helpful in locomotion and attachment. It is formed by the
a) Last 2 segment
b) Last 7 segments
c) Last 8 segments
d) None of the above

54) In the course of evolution the true coelom appeared first in
a) Aschelminthes
b) Annelida
c) Echinodermata
d) Chordata

55) Metamerism is characteristic of the phylum
a) Porifera
b) Platyhelminthes
c) Annelida
d) Mollusca

56) Which of the following is not an annelidan character?
a) Triploblastic body
b) Enterocoel
c) Metamerism
d) Bilateral symmetry

57) In Polychaeta, the setae are
a) Numerous
b) Singly arranged
c) Arranged in bundles
d) Fused

58) The earthworm is placed in the group
a) Polychaeta
b) Oligochaeta
c) Hirudinea
d) Crustacea

59) Metamorphosis does not occur in
a) Oligochaeta
b) Polychaeta
c) Cnidaria
d) All of these

60) A postanal tail is absent in the
a) Snake
b) Earthworm
c) Rabbit
d) Lizard

61) A suctorial mouth is found in
a) Ascaris
b) Taenia
c) Earthworm
d) Leech

62) “Tube within a tube” body plan exists in the
a) Earthworm
b) Frog
c) Scorpion
d) Unio

63) A character common to earthworms and leeches is the
a) Clitellum
b) Botryoidal tissue
c) Presence of suckers
d) Closed circulation

64) The earthworm moves with the help of
a) Setae alone
b) Muscles alone
c) Setae and muscles
d) Parapodia

65) The segment(s) having no setae in earthworms is or are the
a) First
b) Last
c) Clitellar
d) First, last and clitellar

66) The setae of earthworms is made up of
a) Pectin
b) Cuticle
c) Chitin
d) Cartilage

67) The body cavity of earthworms is a
a) Pseudocoel
b) Hydrocoel
c) Schizocoel
d) Enterocoel

68) A skeleton-like function during locomotion is performed in earthworms by the
a) Blood
b) Ventral nerve cord
c) Typhlosole
d) Coelomic fluid

69) Chloragogen cells of earthworms are analogous to the — in vertebrates
a) Lungs
b) Liver
c) Gut
d) Kidneys

70) In the earthworm, the function of chloragogen cells is
a) Reproduction
b) Digestion
c) Excretion
d) Regeneration

71) In earthworms, the typhlosole is a part of the
a) Gizzard
b) Intestine
c) Pharynx
d) Rectum

72) A living earthworm constantly keeps protruding and retracting its buccal chamber to
a) Help in respiration
b) Assist in locomotion
c) Excrete metabolic wastes
d) Pick up earth particles

73) The mode of nutrition in earthworms is
a) Coprozoic
b) Holophytic
c) Autotrophic
d) Saprozoic

74) Nephrostomes are found in the
a) Integumentary nephridia
b) Septal nephridia
c) Pharyngeal nephridia
d) None of the above

75) In a copulating pair of earthworms which of these two processes takes place?
a) Reciprocal fertilization and internal fertilization
b) Cross fertilization and reciprocal fertilization
c) Internal fertilization and cross fertilization
d) External fertilization and internal fertilization

76) A cocoon of earthworm contains
a) One fertilized eggs
b) Two fertilized eggs
c) Many fertilized eggs
d) None of above

77) Earthworms are friends of farmers, because
a) They eat bacteria
b) They produce humus
c) They increase the fertility of soil
d) None of these

78) The occurrence of earthworms in the soil is indicated by
a) Holes
b) Cast skin
c) Heaps of dry powdery soil
d) Heaps of small rounded pellets

79) Which one of the following characterises the Heteronereis stage of Nereis?
a) Quite inactive sexual stage
b) Very active asexual stage
c) Sexual stage with epitoke which is very active
d) Asexual stage with epitoke which is very active

80) The suckers of the leech are located at the
a) Anterior end of the body
b) Posterior end of the body
c) Anterior and posterior end of the body
d) All over the body

81) The botryoidal tissue of leech is a/an
a) Connective tissue
b) Mesodermal tissue
c) Epithelial tissue
d) Mesenchymatic tissue

82) Aphrodite is commonly known as
a) Seafan
b) Sea mouse
c) Lungworm
d) Ragworm

83) The generic name of lugworm is
a) Glycera
b) Arenicola
c) Spongicola
d) Chaetopterus

84) An example of Errantia is
a) Eunice
b) Tubifex
c) Sabella
d) Nereis

85) Which one of the following exhibit a concentric “tube within a tube” plan?
a) Hydrozoa
b) Oligochaeta
c) Calcarea
d) Echinodermata

86) In which of the following is respiratory pigment absent?
a) Prawn
b) Earthworm
c) Rat
d) Cockroach

87) The larva of the housefly is called a
a) Caterpillar
b) Maggot
c) Bipinnaria
d) Trochophore

88) The difference between Blatta and Periplaneta is
a) The female Blatta has functional wings and Periplaneta has vestigial wings
b) The female Periplaneta has functional wings & Blatta has vestigial wings
c) Blatta and Periplaneta both have functional wings but Blatta is smaller
d) Blatta and Periplaneta both have vestigial wings but Blatta is larger

89) The functional wing of the housefly is the
a) Anterior pair of wings
b) Posterior pair of wings
c) Both of the above
d) None of the above

90) Pupa stage is found during the life cycle of the
a) Cockroach and Earth worm
b) Mosquito and Taenia
c) Fasciola and Housefly
d) Housefly and mosquito

91) Piercing and sucking mouth parts occur in
a) Cockroach
b) Housefly
c) Butterfly
d) Mosquito

92) The larva and nymphal characters of insects are due to the action of
a) Juvenile hormone
b) Ecdysosne
c) Thyroxin
d) Pituitary

93) Lac is secreted by these organs of the lac insect
a) Skin
b) Salivary glands
c) Abdominal glands
d) Anal disc

94) Honey bees exhibit one of the following types of dance to communicate the location of food:
a) Tap dance
b) Round dance
c) Break dance
d) Round and waggle dance

95) Each compound eye consists of small units called
a) Ommatidia
b) Corneagen cells
c) Lenticular cells
d) Retina

96) The phylum which includes the maximum number of species is
a) Mollusca
b) Protozoa
c) Arthropoda
d) Annelida

97) Ants belong to the order
a) Hymenoptera
b) Lepidoptera
c) Rhizipoda
d) Arthropoda

98) The feature common to the mosquito and the leech is the
a) Presence of caecae for blood
b) Presence of jaws for biting
c) Presence of anticoagulant
d) Absence of blood vascular system

99) Encephalitis in man is transmitted by
a) Culex
b) Anopheles
c) Bedbug
d) Housefly

100) Nauplius larva belongs to
a) Prawns
b) Insects
c) Echinoderms
d) Molluscs



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