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Biological Classification Animals II MCQ
Quiz 8
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Q.1
Elephant tuckshell belongs to the class
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a) Pelecypoda
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b) Cephalopoda
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c) Scaphopoda
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d) Gastropoda
Explanation
Answer:(c)
Q.2
Radially symmetrical animal with tissue grade of organization and diploblastic body wall is found in:
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a) Aplysia
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b) Chaetopleura
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c) Sycon
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d) Meandrina
Explanation
Answer:(d)
Q.3
Which of the following possess comb plates for locomotion:
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a) Sepia
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b) Chaetopleura
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c) Ascaris
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d) Pleurobranchia
Explanation
Answer:(d)
Q.4
Metazoan parasite which is transmitted through contaminated food is
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a) Filarial worm
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b) Guinea worm
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c) Entamoeba
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d) Ascaris
Explanation
Answer:(d)
Q.5
Sponge are generally
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a) Hermaphrodite
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b) Unisexual
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c) Sexually sterile
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d) Either (b) and(c)
Explanation
Answer:(a)
Q.6
Which is free swimming stage in the life history of Fasciola?
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a) Miracidium
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b) Sporocyst
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c) Redia
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d) All of these
Explanation
Answer:(a)
Q.7
Match the following:
P. Loligo
Sea hare
Q. Dentalium
Squid
R. Octopus
Pearl oyster
S. Aplysia
Devil fish
T. Pinctada
Tusk shell
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a) P → 2 ,Q →4 ,R → 5 ,S →2 ,T →3
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b) P → 2 ,Q →5 ,R → 3 ,S →4 ,T →1
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c) P → 3 ,Q →4 ,R → 5 ,S → 1 ,T → 2
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d) P → 2 ,Q →5 ,R → 4 ,S → 1 ,T →3
Explanation
Answer:(d)
Q.8
If Hydra is cut into two parts
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a) Mouth and basal disc at any end
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b) Mouth and basal disc develop according to presence of mouth and basal disc in parent Hydra
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c) Hydra without mouth and basal disc
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d) All
Explanation
Answer:(b)
Q.9
Which is not correctly matched
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a) Annelida – Enterocoelomate
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b) Arthropoda – Schizocoelomate
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c) Platyhelminthes – Acoelomate
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d) Nemathelminthes – Pseudoelomate
Explanation
Answer:(a)
Q.10
Which of the following is a molluscan larvae?
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a) Bipinnaria
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b) Veliger
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c) Parenchymula
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d) Auricularia
Explanation
Answer:(b)
Q.11
Jointed appendages are characteristic of the phylum
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a) Mollusca
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b) Annelida
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c) Echinodarmata
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d) Arthropoda
Explanation
Answer:(d)
Q.12
In Schistosoma, gynaecophoral canal occurs in
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a) Male for holding female
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b) Male for holding eggs
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c) Female for holding eggs
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d) Female for holding male
Explanation
Answer:(a)
Q.13
Which one of the following classes has the maximum economic importance ?
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a) Myriapoda
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b) Gastropoda
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c) Pelecypoda
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d) Cephalopoda
Explanation
Answer:(c)
Q.14
Scientific name Sea Pen is for
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a) Pennutula
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b) Gorgonia
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c) Porpita
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d) Velella
Explanation
Answer:(a)
Q.15
Which of the following is the correct course of water circulation through the canal system of a simple sponge?
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a) Ostia → Spongocoel → Osculum.
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b) Osculum → Spongocoel → Ostia
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c) Ostia → Osculum → Spongocoel.
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d) Spongocoel → Osculum →Ostia
Explanation
Answer:(a)
Q.16
Choanocytes are
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a) Uniflagellate
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b) Biflagellate
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c) Tetraflagellate
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d) Multiflagellate
Explanation
Answer:(a)
Q.17
Cestodes are distinguished from other flatworms by the absence of
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a) Nervous system
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b) Digestive system
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c) Excretory system
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d) Reproductive system
Explanation
Answer:(b)
Q.18
Organs of locomotion in Echinodermata are
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a) Pseudopodia
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b) Parapodia
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c) Foot
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d) Tube feet
Explanation
Answer:(d)
Q.19
Reproductive cells present in gemmules are
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a) Intersitial cells
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b) Archaeocytes
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c) Chromocytes
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d) Phagocytes
Explanation
Answer:(b)
Q.20
What will happen if the cnidocil is touched with a glass rod?
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a) Nematoblasts will be discharged
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b) Nematoblasts will not discharged
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c) Nematoblasts will die
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d) None of the above
Explanation
Answer:(a)
Q.21
Q184) A thick layer of cuticle on the surface of Ascaris indicates
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a) Reproduction
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b) Growth
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c) Parasitism
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d) Evolution
Explanation
Answer:(c)
Q.22
Miracidium is the larval stage of
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a) Tapeworm
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b) Roundworm
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c) Pinworm
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d) Liver Fluke
Explanation
Answer:(a)
Q.23
The digestive system of Platyhelminthes is called incomplete digestive system because:
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a) They have hooks and suckers which helps them to absorb nutrients from host.
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b) They are patristic forms of nutrition.
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c) They have a single opening which serves as both mouth and anus.
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d) They are protostomes and anus develops first from blastopore.
Explanation
Answer:(c)
Q.24
Which pairing is correct?
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a) Culex – Filariasis
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b) Bedbug – Kala-azar
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c) Housefly – Yellow fever
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d) Snadfly – Amoebic dysentery
Explanation
Answer:(a)
Q.25
Fixed organisms generally possess
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a) Asymmetrical body
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b) Radial symmetry
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c) One single opening of digestive canal
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d) Cilia on the surface to create water current
Explanation
Answer:(c)
Q.26
Which type of mouthparts occur in mosquitoes?
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a) Piercing and sucking
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b) Biting and chewing
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c) Chewing and lapping
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d) Siphoning
Explanation
Answer:(a)
Q.27
Green glands are excretory organs in
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a) Insects
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b) Crustacea
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c) Centripedes
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d) Arachnida
Explanation
Answer:b)
Q.28
Sea fan is:
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a) Diploblastic and bilaterally symmetrical.
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b) Triploblastic and radially symmetrical.
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c) Diploblastic and radially symmetrical.
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d) Diploblastic and cellular grade of organization.
Explanation
Answer:(c)
Q.29
hich phylum has the following features: (i) Digestive tract complete, straight or U shaped. (ii) Worm like, unsegmented marine animals. (iii) Respiration by gills. (iv) Excretion by single proboscis gland. (v) Open circulatory system.
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a) Arthropoda
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b) Mollusca
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c) Annelida
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d) Hemichordata
Explanation
Answer:(d)
Q.30
The body cavity in poriferans opens out by an opening called:
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a) Ostium
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b) Osculum
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c) Spongopore
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d) Gonopore
Explanation
Answer:(b)
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