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4

Phototropism means that plants react to the direction of

A. sound

B. wind

C. light

D. gravity

Correct Answer :

C. light


Related Questions

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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

Under the immunisation programme's Govt. of India is providing vaccination to prevent some vaccine-preventable diseases. Which of the following is NOT one of them?

A. Tuberculosis

B. Diphtheria

C. Tetanus

D. Plague

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4

The animal without urinary bladder is

A. Bird

B. Man

C. Rabbit

D. Cow

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4

Bovine Spongiform Encephalopathy refers to

A. Brain Fever

B. Mad Cow Disease

C. Enteric Fever

D. Poultry Diarrhoea

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4

Measles and influenza are caused by

A. virus

B. bacteria

C. insects

D. nematodes

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4

It Is not advisable to sleep under a tree at night because of release of

A. oxygen in a lesser quantity than the required levels

B. oxygen in large amounts

C. carbon monoxide

D. carbon dioxide

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4

Agroecology relates

A. crops and productivity

B. crops and environment

C. crop productivity and physiology

D. crop resistance to climatic changes

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4

Injection of insulin causes

A. increase in glucose in blood

B. decrease in glucose in blood

C. increase in blood pressure

D. decrease in blood pressure

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4

The workers in the honey bee colony are

A. males

B. females

C. sterile females

D. intersex

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4

The specific gravity of blood is

A. lower than water

B. higher than water

C. same as water

D. many times that of water

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4

Diabetes is a disease which is

A. contagious

B. non-communicable

C. communicable

D. epidemic

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4

pH of blood remains constant due to

A. blood pressure

B. buffer action

C. perspiration

D. respiration

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4

Valve a are present inside

A. Arteries

B. Capillaries

C. Veins

D. Lymph vessels

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4

Gases of Jupiter' are

A. Ammonia, Methane, Hydrogen

B. Sulphur, Urethane, Oxygen

C. Carbon, Phosphorus and Oxygen

D. Nitrogen, Hydrogen and Chlorine

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4

Kwashiorkar is characterised by

A. dermatitis, changes in hair pigments and retarded brain growth

B. excretion of creatine in excess

C. tyrosinosis and alcaptonuria

D. None of these

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4

Light compensation zone refers to

A. where light is available in plenty

B. where all light energy is used

C. where light is maximum

D. beyond which light does not penetrate

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4

Haemoglobin is dissolved in the plasma of

A. frog

B. fish

C. man

D. earthworm

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4

Colour vision is made possible by the cells in the retina called

A. rods

B. cones

C. fovea

D. blind spot

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4

Synthesis of nutrients by green plants is called

A. photo-oxidation

B. photo-respiration

C. photo-synthesis

D. photo-periodism

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4

What is the bacterial disease in lime fruits?

A. Phythophthora

B. White rust

C. Citrus canker

D. Smut disease

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4

Stripes on the bodies of animals Indicate

A. mating habit

B. food habit

C. cave dwelling

D. matching of skin colour with the surroundings

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4

Who was the first scientist/doctor who attempted vaccination?

A. Joseph Lister

B. Robert Koch

C. Elie Metchnikoff

D. Edward Jenner

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4

Genes are made of

A. Carbohydrates

B. Proteins

C. Fats

D. Nucleotides

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4

Hormones are carried from their place of production by

A. Ducts

B. Blood

C. Lymph

D. Mucus

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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

The theory of use and disuse was used to explain evolution by

A. Lamarck

B. Darwin

C. De Vries

D. Wallace

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4

Who considered evolution as due to mutation?

A. Charles Darwin

B. Lamarck

C. Hugo de Vries

D. Cuvier

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4

The blood clotting requires the vitamin

A. A

B. B

C. C

D. K

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4

Sterilization, as the means for the prevention of sepsis in surgery, was practised and advocated by

A. Louis Pasteur

B. Edward .Jenner

C. Joseph Lister

D. Martinus Willem Beijerinck

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4

Athlete's Coot is the common name for the fungal disease

A. Tinea pedis

B. Tinea cruris

C. Tinea corporis

D. Tinea capitis