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4

Pineal setae arise from

A. vulva of female Ascaris

B. roof of diencephalon

C. cloaca of an amphibian

D. cloaca of male roundworm

Correct Answer :

D. cloaca of male roundworm


Related Questions

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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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In order to counter act the host's digestive juices, Ascaris produces

A. a hormone

B. an antienzyme

C. enterokinase

D. hydrochloric acid

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In Ascaris, the excretory organs are

A. nephridia

B. kidneys

C. excretory cells

D. flame cells

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The cuticle has spines in

A. Fasciola

B. Taenia

C. Ascaris

D. Dracunculus

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Sense organs of Ascaris are

A. epidermal cords

B. spicules

C. papillae and amphids

D. circumcentric ring

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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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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 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 dorsal and ventral lines in Ascaris contain

A. nerve cords

B. nerves

C. excretory canals

D. oviducts

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Development of Ascaris eggs require

A. oxygen

B. moisture

C. a temperature lower than that of human body

D. a temperature higher than that of human body

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In Ascaris mark the correct statement:

A. The testis is monoarchic, telogenic and the sperms are amoeboid

B. The testis is monoarchic, telogenic and the sperms are flagellated

C. The coelom in haemocoel

D. The gonads are metagonic and eggs are centrolecithal

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Ascaris is

A. monogenetic

B. digenetic

C. poly genetic

D. any of these

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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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Number of testis in male Ascaris is

A. one

B. one pair

C. two pairs

D. three pairs

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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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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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The intermediate host in the life cycle of Ascaris is

A. cattle

B. man

C. a fresh water fish

D. none of these

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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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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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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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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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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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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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In the Ascaris egg, the first larva hatches out in the

A. stomach of host

B. intestine of host

C. outside the body of host

D. uterus of female ascaris

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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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4

Which disease is caused by a nematode ?

A. Amoebiasis

B. Filariasis

C. Poliomyelitis

D. Leprosy

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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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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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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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Lips of Ascaris are

A. cartilaginous

B. homy

C. bony

D. denticulate