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Ascaris lumbricoides is a worm of class Nematoda of the Phylum

A. platyhelminthes

B. annelida

C. arthropoda

D. aschelminthes

Correct Answer :

D. aschelminthes


Related Questions

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Which is not a typical character of class Nematoda ?

A. Syncytial epidermis

B. Pseudocoel

C. Non-living cuticle

D. Only parasitic animals and plants

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The body cavity of Ascaris is a pseudo-coel because

A. it contains large cells termed pseudo-coelocytes

B. it is bounded externally by muscle layer and internally by intestines

C. it has very little parenchyma

D. it is filled with pseudocoelomic fluid

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Lips of Ascaris are

A. cartilaginous

B. homy

C. bony

D. denticulate

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The shape of fertilised egg of Ascaris, leaving the alimentary canal of man is

A. elliptical with wavy surface

B. rounded with wavy surface

C. elliptical with smooth surface

D. not fixed, and varies considerably

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Below the cuticle in Ascaris lies a thin layer of epidermis having scattered nuclei and no partition walls. This is known as

A. multinucleated epidermis

B. multicellular epidermis

C. aseptate epidermis

D. synciy tial epidermis

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Ascaris is found as endoparasite in

A. blood of man

B. intestine of man

C. muscles of pig

D. body cavity of man

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The life span of Ascaris is

A. more than 30 days

B. six months

C. nine months

D. about an year

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Chenopodium oil is successfully used for expulsion of

A. tapeworms

B. liver flukes

C. flat worms

D. roundworms

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In Ascaris, the mode of formation of ova is

A. telogenic

B. budding

C. hypergonic

D. didelphic

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The lateral epidermal chords of Ascaris eneolse in it

A. nerve cords

B. blood vessels

C. excretory ducts

D. reproductive ducts

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The dorsal and ventral lines in Ascaris contain

A. nerve cords

B. nerves

C. excretory canals

D. oviducts

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During growth, the Ascaris undergoes moulting in the body of host for

A. two times

B. four times

C. five times

D. six times

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In the life cycle of Ascaris, the rhabditi form larvae are liberated in the

A. lungs before migrating to small intestine

B. human excreta

C. Soil

D. upper part of small intestine

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In Ascaris, the excretory organs are

A. nephridia

B. kidneys

C. excretory cells

D. flame cells

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Pineal setae arise from

A. vulva of female Ascaris

B. roof of diencephalon

C. cloaca of an amphibian

D. cloaca of male roundworm

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In Ascaris only the anterior part of the testis is functionable. Such a gonad is known as

A. monarchic

B. didelphic

C. telogenic

D. metagonic

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Infection of Ascaris usually occurs by

A. mosquito bite

B. tse tse fly

C. imperfectly cooked pork

D. contaminated water and vegetables

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Which of the larvae of Ascaris is most pathogenous in the host ?

A. First in embryosphere

B. Second in embryosphere

C. Third in liver

D. Fourth in lungs

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Ascaris is not swept out of host's alimentary canal, under the effect of peristalsis because

A. it has slender form of body

B. it is firmly attached to gut wall of host

C. due to its own undulating movement against the direction of peristalsis

D. due to its hard cuticle

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The female genital pore in Ascaris is situated on the ventral side

A. about 1/3 behind from the anterior end

B. middle part of the body

C. about 1/3 ahead of the posterior end

D. terminal at the posterior end

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The female Ascaris can be distinguished from the male by

A. curved posterior part

B. straight posterior part

C. pinearl setae

D. shorter in size

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Number of testis in male Ascaris is

A. one

B. one pair

C. two pairs

D. three pairs

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Which of the following is almost devoid of external features ?

A. Liver fluke

B. Tapeworm

C. Blood fluke

D. Nematode worms

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Ascaris lumbricoides is a worm of class Nematoda of the Phylum

A. platyhelminthes

B. annelida

C. arthropoda

D. aschelminthes

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The period of incubation in Ascaris outside the human body is

A. 4 to 8 days

B. 8 to 14 days

C. 15 to 30 days

D. more than 30 days

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The cuticle has spines in

A. Fasciola

B. Taenia

C. Ascaris

D. Dracunculus

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Which of the following has no alternate host?

A. Fasciola hepatica

B. Ascaris lumbricoides

C. Plasmodium vivax

D. Tapeworm

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In the life-history of Ascaris lumbricoides in human host the juvenile stage hatches out from the egg in

A. intestine

B. stomach

C. hydrocoel

D. pseudocoel

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A gravid proglottid has

A. both male and female reproductive organs

B. only male reproductive organs

C. only female reproductive organs

D. branched uterus filled with completed eggs

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The intermediate host in the life cycle of Ascaris is

A. cattle

B. man

C. a fresh water fish

D. none of these