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4

What are the symptoms of retinal deficiency?

A. Dry skin

B. Rough skin

C. Night blindness

D. Sensitiveness to light and ulcers

Correct Answer :

C. Night blindness


Related Questions

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4

Hormones are carried from their place of production by

A. ducts

B. blood

C. lymph

D. muscus

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4

The dreaded virus which, on reaching the central nervous system, produces spasms of the muscles of the throat and the cheat while swallowing, and is sure to kill the patient is

A. Poliomyelitis virus

B. AIDS virus

C. Smallpox virus

D. Rabies virus

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4

Tuberculosis is caused by

A. tobacco

B. tubers

C. bacteria

D. virus

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4

The association between leguminous plants and bacteria is

A. parasitic

B. saprophytic

C. symbiotic

D. None of the above

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4

Oxygen transport is a function of

A. white blood corpuscles

B. red blood corpuscles

C. blood platelets

D. plasma

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4

Rate of mutation can be increased in plants by

A. More manure

B. More pesticides

C. X-ray

D. More light

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4

Memory is the responsibility of

A. cerebrum

B. cerebellum

C. medulla oblongata

D. spinal cord

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4

The method of inducing artificial immunity was discovered by

A. Jenner

B. Tolstoy

C. Pasteur

D. Morgan

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4

The buffer substance in blood is

A. Calcium carbonate

B. Carbon dioxide

C. Sodium bicarbonate

D. Ammonia

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4

The most primitive mammals are

A. carnivorous

B. herbivorous

C. omnivorous

D. insectivorous

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4

Antisnake venom is prepared by

A. Pasteur institute

B. Hoffkine's institute

C. Birla's institute

D. Indian Science Institute

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4

Insect pollination is known as

A. Hydrophily

B. Ornithophily

C. Anemophily

D. Entomophily

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4

The waste product In the urine of man is

A. urea

B. uric acid

C. ammonia

D. non-nitrogenous

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4

Digestion of proteins starts in the

A. mouth

B. stomach

C. duodenum

D. intestine

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4

Which one of the endocrine glands disappears after puberty?

A. Thyroid

B. Thymus

C. Adrenals

D. Pituitary

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4

The corn in an underground stem that grows

A. horizontally

B. vertically

C. above the soil

D. obliquely

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4

Insulin is concerned with the metabolism of

A. sugar

B. fats

C. proteins

D. vitamins

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4

Viruses have

A. DNA only

B. RNA only

C. Either DNA or RNA

D. Both DNA and RNA

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4

Fishes send out their nitrogenous waste as

A. ammonia

B. urea

C. uric acid

D. sweat

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4

The grouping o( blood is based on substances called

A. antibodies

B. antigens

C. antitoxin

D. enzymes

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4

Which organelle in the cell, other than nucleus, contains DNA?

A. Centriole

B. Golgi apparatus

C. Lysosome

D. Mitochondrion

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4

The protoplasm of a child is exactly the same as that of its

A. mother

B. father

C. grandfather

D. identical twin

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4

Bats can fly in the dark because

A. they have a better vision in the dark

B. the light startles them

C. they produce high pitched sounds called ultrasonics

D. None of the above

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4

Vitamin D is manufactured in a healthy human being by the action of _______ on the skin and absorbed in the blood stream.

A. ozone

B. radium

C. moonlight

D. sunlight

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4

The theory that believes that the first living organism came from another planet is known as

A. Catastrophism

B. Special creation

C. Organic evolution

D. Cosmozoic theory

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4

Malarial parasite is brought to human host by

A. male anopheles mosquito

B. female anopheles mosquito

C. male culex

D. female culex

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4

Fusarium causes the wilting of the cotton plants by

A. clogging the vessels

B. producing toxic substance

C. causing necrosis of roots

D. killing the leaves

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4

The best and easy method of control of crop pests is by

A. crop rotation

B. chemicals

C. quarantine

D. biological control

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4

The first sign of life made its appearance on the earth about

A. 1 million years ago

B. 500 million years ago

C. 1 billion or 1000 million years ago

D. 3 billion years ago

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4

The pH of normal urine of man ranges from

A. 6 - 8

B. 4.5 - 6

C. 2.5 - 6

D. 8 10