CSS Zoology Questions & Answers - Set 35

1)   Beneath the cuticle in Ascaris is found a hypodermis which is:

a. Columnar
b. Syncitial
c. Ciliated
d. Cuboidal
Answer  Explanation 

ANSWER: Syncitial

Explanation:
No explanation is available for this question!


2)   Ascaris is a :

a. Free living organism
b. Ectoparasite of man
c. Endoparasite of mosquito
d. Endoparasite of man
Answer  Explanation 

ANSWER: Endoparasite of man

Explanation:
No explanation is available for this question!


3)   Which of these parasites has no intermediate host:

a. Liver-fluke
b. Tape-worm
c. Ascaris
d. None of these
Answer  Explanation 

ANSWER: Ascaris

Explanation:
No explanation is available for this question!


4)   Ascaris is:

a. Unisexual
b. Hermaphrodite
c. Monoecious
d. None of these
Answer  Explanation 

ANSWER: Unisexual

Explanation:
No explanation is available for this question!


5)   Coenocytic epidermis is found in:

a. Earthworm
b. Leech
c. Ascaris
d. None of these
Answer  Explanation 

ANSWER: Ascaris

Explanation:
No explanation is available for this question!


6)   The cuticle of Ascaris is:

a. Thick
b. Thick and protective
c. Thick, protective and resistant to host's digestive justices
d. Thin cellular and permeable to various substances in the environment of host
Answer  Explanation 

ANSWER: Thick, protective and resistant to host's digestive justices

Explanation:
No explanation is available for this question!


7)   Special modification of Ascaris to its parasitic node of life is:

a. Segmented body
b. Resistant cuticle on body surface
c. Straight and uncoiled alimentary canal
d. None of these
Answer  Explanation 

ANSWER: Resistant cuticle on body surface

Explanation:
No explanation is available for this question!


8)   With reference to parasitism, the round worm (Ascaris) may be regarded as specialized animal and not a degenerated one because of the fact that it is:

a. Dioecious animal
b. Having no respiratory system
c. Provided with a tough and resistant cuticle
d. Provided with straight alimentary canal with mouth and anus
Answer  Explanation 

ANSWER: Dioecious animal

Explanation:
No explanation is available for this question!


9)   Cuticle of Ascaris is adapted for:

a. Locomotion
b. Respiration
c. Defence from host
d. Reproduction
Answer  Explanation 

ANSWER: Defence from host

Explanation:
No explanation is available for this question!


10)   A male Ascaris can be recognized from a female by:

a. Small body size
b. Small body, cloaca and curved post end
c. Small body, cloaca, pineal spicules and curved posterior end
d. None of these features
Answer  Explanation 

ANSWER: Small body, cloaca, pineal spicules and curved posterior end

Explanation:
No explanation is available for this question!


11)   Two-s$exes in As$caris can be identified by which of these:

a. Posterior end of male is straight while that of female is curved
b. Posterior end of male is curved while that of female is straight
c. Anterior end of female is curved while that of male is straight
d. Anterior end of male is curved while that of female is straight
Answer  Explanation 

ANSWER: Posterior end of male is curved while that of female is straight

Explanation:
No explanation is available for this question!


12)   An-us is found in:

a. Male Ascaris
b. Female Ascaris
c. Both (a) & (b)
d. None of these
Answer  Explanation 

ANSWER: Female Ascaris

Explanation:
No explanation is available for this question!


13)   Pineal setae are arisen from:

a. Cloaca of male Ascaris
b. Vulva of female Ascaris
c. Cloaca of female Ascaris
d. None of these
Answer  Explanation 

ANSWER: Cloaca of male Ascaris

Explanation:
No explanation is available for this question!


14)   Lips of Ascaris are:

a. Denticulate
b. Cartilagenous
c. Smooth
d. Bony
Answer  Explanation 

ANSWER: Denticulate

Explanation:
No explanation is available for this question!


15)   Excretory organs in Ascaris are:

a. Flame cells
b. Renette cell
c. Nephridia
d. Malpighian tubules
Answer  Explanation 

ANSWER: Renette cell

Explanation:
No explanation is available for this question!


16)   Epidermis of body wall of Ascaris is:

a. Stratified and columnar
b. Syncitial
c. Stratified and cuboidal
d. None of these
Answer  Explanation 

ANSWER: Syncitial

Explanation:
No explanation is available for this question!


17)   Body is unsegmented in:

a. Mosquitoes
b. Round-worms
c. Earthworms
d. House-fly
Answer  Explanation 

ANSWER: Round-worms

Explanation:
No explanation is available for this question!


18)   Ascaris is a:

a. Monogenetic parasite
b. Digenetic parasite
c. Trigenetic parasite
d. None of these
Answer  Explanation 

ANSWER: Monogenetic parasite

Explanation:
No explanation is available for this question!


19)   Cuticle of Ascaris is made up of:

a. Cortex made of karatin
b. Matrix made of matricin
c. Fibrous layer of collagen and basement layer
d. All of them
Answer  Explanation 

ANSWER: All of them

Explanation:
No explanation is available for this question!


20)   Testis in Ascaris is:

a. Monorchic
b. Diorchis
c. Polyorchis
d. None of these
Answer  Explanation 

ANSWER: Monorchic

Explanation:
No explanation is available for this question!


21)   In Ascris the median rachis is found in:

a. Vas deferen
b. Oviduct
c. Testis and ovaries
d. Uteri
Answer  Explanation 

ANSWER: Testis and ovaries

Explanation:
No explanation is available for this question!


22)   Which one of these hatch out from the egg of Ascaris:

a. Cercaria
b. Hexacanth
c. Rhabditiform larva
d. None of them
Answer  Explanation 

ANSWER: Rhabditiform larva

Explanation:
No explanation is available for this question!


23)   Maximum number of eggs a female Ascris lays per day:

a. 2000
b. 200
c. 20,000
d. 2,70,000
Answer  Explanation 

ANSWER: 2,70,000

Explanation:
No explanation is available for this question!


24)   Number of pineal setae in male Ascaris is:

a. One
b. Two
c. Three
d. Four
Answer  Explanation 

ANSWER: Two

Explanation:
No explanation is available for this question!


25)   Which of these has only one host in life cycle:

a. Ascaris
b. Fasciola
c. Taenia
d. All of these
Answer  Explanation 

ANSWER: Ascaris

Explanation:
No explanation is available for this question!


26)   Final moult of rhabditiform larva of Ascaris occurs in human:

a. Stomach
b. Liver
c. Intestine
d. Lungs
Answer  Explanation 

ANSWER: Intestine

Explanation:
No explanation is available for this question!


27)   In the life history of Ascaris lumbricoides in human host the juvenile stage hatches out of egg in:

a. Stomach
b. Mouth
c. Intestine
d. Lungs
Answer  Explanation 

ANSWER: Intestine

Explanation:
No explanation is available for this question!


28)   After hatching from the egg in human intestine, the rhabditiform larva of Ascaris undergoes a typical journey to return back to intestine in about:

a. 10 days
b. 60 - 75 days
c. 3 weeks
d. One week
Answer  Explanation 

ANSWER: 60 - 75 days

Explanation:
No explanation is available for this question!


29)   Infective stage of Ascaris lumbricoides to man is:

a. Fertilized egg prior to development
b. Embryonated eggs
c. Larva after third moult
d. Larva after fourth moult
Answer  Explanation 

ANSWER: Embryonated eggs

Explanation:
No explanation is available for this question!


30)   In which of these sexual dimorphism is found:

a. Ascaris
b. Fasciola
c. Taenia
d. All of these
Answer  Explanation 

ANSWER: Ascaris

Explanation:
No explanation is available for this question!


31)   Body cavity of Ascaris is:

a. Haemocoel
b. Coelom
c. Pseudocoel
d. Paracoel
Answer  Explanation 

ANSWER: Pseudocoel

Explanation:
No explanation is available for this question!


32)   Moulting of second instar larva of Ascaris takes place in:

a. Intestine
b. Sand
c. Blood vessel
d. Lungs
Answer  Explanation 

ANSWER: Lungs

Explanation:
No explanation is available for this question!


33)   Which of these will respire anaerobically:

a. Insects under soil
b. Worms living in intestine
c. Foetus inside the uterus
d. Amoeba in stagnant water
Answer  Explanation 

ANSWER: Worms living in intestine

Explanation:
No explanation is available for this question!


34)   Sexual dimorphism is distinct in Ascaris because of:

a. Pineal setae
b. Postanal glands
c. Buccal margins
d. None of these
Answer  Explanation 

ANSWER: Pineal setae

Explanation:
No explanation is available for this question!


35)   Female Ascaris can be identified by the:

a. Straight posterior end and anus
b. Cloacal aperture
c. Two pineal setae and cloaca
d. Pre and postanal papillae
Answer  Explanation 

ANSWER: Straight posterior end and anus

Explanation:
No explanation is available for this question!


36)   Male and Female Ascaris respectively have:

a. Two testes and one ovary
b. One testes and two ovary
c. Two testes and two ovary
d. One testes and one ovary
Answer  Explanation 

ANSWER: One testes and two ovary

Explanation:
No explanation is available for this question!


37)   A pseudocoel is present in which of these:

a. Liver-fluke
b. Tape-worm
c. Round-worm
d. Earthworm
Answer  Explanation 

ANSWER: Round-worm

Explanation:
No explanation is available for this question!


38)   Second instar larva in Ascaris is found in:

a. Human lungs
b. Human intestine
c. Human liver
d. Embryonate eggs
Answer  Explanation 

ANSWER: Embryonate eggs

Explanation:
No explanation is available for this question!


39)   Eggs are fertilized in Ascaris in the:

a. Vagina
b. Oviducts
c. Uteri
d. Seminal receptacles
Answer  Explanation 

ANSWER: Seminal receptacles

Explanation:
No explanation is available for this question!


40)   Eggs of Ascaris that pass out of host's body are:

a. Fertilized
b. Unfertilized and unsegmented
c. Unfertilized
d. Fertilized and segmented
Answer  Explanation 

ANSWER: Fertilized

Explanation:
No explanation is available for this question!


41)   Posterior end of male Ascaris is:

a. Straight
b. Curved
c. Flattened
d. Coiled
Answer  Explanation 

ANSWER: Curved

Explanation:
No explanation is available for this question!


42)   Filaria is caused by:

a. Tapeworm
b. Liver-fluke
c. Prtozoan
d. Nematode
Answer  Explanation 

ANSWER: Nematode

Explanation:
No explanation is available for this question!


43)   Causative organism for filariasis is:

a. Wuchereria bancrofti
b. Fasciola hepatica
c. Ascaris lunbricoides
d. Taenia solium
Answer  Explanation 

ANSWER: Wuchereria bancrofti

Explanation:
No explanation is available for this question!


44)   Which of these diseases is caused by nematode:

a. Filariasis
b. Amoebiasis
c. Schistosomiasis
d. None of these
Answer  Explanation 

ANSWER: Filariasis

Explanation:
No explanation is available for this question!


45)   Elephantiasis' is transmitted by:

a. House-fly
b. Mosquito
c. Bed-bug
d. Fruit-fly
Answer  Explanation 

ANSWER: Mosquito

Explanation:
No explanation is available for this question!


46)   Filaria germ is a kind of:

a. Protozoan
b. Nematode
c. Bacterium
d. Virus
Answer  Explanation 

ANSWER: Nematode

Explanation:
No explanation is available for this question!


47)   Pin-worms, muscle-worms, hook-worms, whip-worms, guinea-worms and muscle-worms belong to group:

a. Nematoda
b. Platyhelminthes
c. Protozoa
d. Insecta
Answer  Explanation 

ANSWER: Nematoda

Explanation:
No explanation is available for this question!


48)   Wuchereria bancrofti is transmitted by:

a. Culex mosquito
b. Anopheles mosquito
c. Sand-fly
d. None of these
Answer  Explanation 

ANSWER: Culex mosquito

Explanation:
No explanation is available for this question!


49)   Jointed appendages are found in:

a. Annelida
b. Mollusca
c. Arthropods
d. None of these
Answer  Explanation 

ANSWER: Arthropods

Explanation:
No explanation is available for this question!


50)   To which of these phyla the periplanata belongs:

a. Arthropods
b. Annelida
c. Mollusca
d. Echinodermata
Answer  Explanation 

ANSWER: Arthropods

Explanation:
No explanation is available for this question!


51)   Hard chitinous exoskeleton is found in the animals of the phylum:

a. Annelida
b. Arthropoda
c. Mollusca
d. Cnidaria
Answer  Explanation 

ANSWER: Arthropoda

Explanation:
No explanation is available for this question!


52)   Centipedes belong to phylum:

a. Annlida
b. Mollusca
c. Arthropoda
d. None of these
Answer  Explanation 

ANSWER: Arthropoda

Explanation:
No explanation is available for this question!


53)   Arthrodial membranes are found in:

a. Cockroach and house-fly
b. Earthworm
c. Hydra
d. Sponge
Answer  Explanation 

ANSWER: Cockroach and house-fly

Explanation:
No explanation is available for this question!


54)   Mouth-parts are used for feeding in:

a. Cockroach
b. House-fly
c. Both (a) & (b)
d. None of these
Answer  Explanation 

ANSWER: Both (a) & (b)

Explanation:
No explanation is available for this question!


55)   Mouth-parts for feeding are found in the members of the phylum:

a. Arthropoda
b. Annelida
c. Cnidaria
d. Mollusca
Answer  Explanation 

ANSWER: Arthropoda

Explanation:
No explanation is available for this question!


56)   Open circulatory system is present in:

a. Cnidarians
b. Helminthes
c. Arthropods
d. None of these
Answer  Explanation 

ANSWER: Arthropods

Explanation:
No explanation is available for this question!


57)   Eyes in arthropods are:

a. Present
b. Present and well developed
c. Present, well developed and compound
d. None of these
Answer  Explanation 

ANSWER: Present, well developed and compound

Explanation:
No explanation is available for this question!


58)   Compound eyes are present in:

a. Arthropods
b. Annelids
c. Molluscs
d. None of these
Answer  Explanation 

ANSWER: Molluscs

Explanation:
No explanation is available for this question!


59)   Malpighian tubules in cockroach are used for:

a. Respiration
b. Excretion
c. Enzyme secretion
d. None of these
Answer  Explanation 

ANSWER: Excretion

Explanation:
No explanation is available for this question!


60)   Malpigman tubules of insects are:

a. Excretory organs
b. Respirtory organ
c. Endocrine structures
d. None of these
Answer  Explanation 

ANSWER: Excretory organs

Explanation:
No explanation is available for this question!