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4

The hormone secreted when one is frightened or excited

A. pituitrin

B. thyroxine

C. adrenaline

D. parathormone

Correct Answer :

C. adrenaline


Related Questions

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4

Those small organisms which float on the surface of water are called

A. Necton

B. pH indicators

C. Plankton

D. Benthos

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4

Which of the following diseases is considered as completely eradicated from India, as no case of the same has been reported in last one year?

A. Polio

B. Tuberculosis

C. Cancer

D. Swine flu

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4

Mendel chose for his experiments the plant

A. Bean

B. Pea

C. Cucumber

D. Rose

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4

Excess of amino-acids are broken down to form urea in the

A. Liver

B. Kidney

C. Spleen

D. Rectum

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4

Blood clot Inside blood vessels is prevented by

A. heparin

B. fibrinogen

C. thrombin

D. prothrombin

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4

What are halophytes?

A. plants found in fresh water

B. plants growing in saline conditions

C. mesophytic plants

D. desert plants

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4

Typhoid is a disease caused by

A. virus

B. bactena

C. fungus

D. animal

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4

Scrub jungle Is characterised by

A. heavy rainfall

B. no rainfall

C. poor rainfall

D. none of the above

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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

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

Plague is caused by

A. Bacteria

B. Virus

C. Fungus

D. Fleas

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4

The geotropism of the roots that makes them grow towards gravity is said to be

A. positive

B. negative

C. neutral

D. oblique

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4

When a movement of a plant organ is stimulated by contact with an object, it is termed

A. heliotropism

B. geotropism

C. haptotropism

D. gardening

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4

Blood is

A. acidic

B. alkaline

C. neutral

D. like a buffer

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4

Phototropism means that plants react to the direction of

A. sound

B. wind

C. light

D. gravity

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4

The pigment which is responsible for blood clotting is

A. Fibrinogen

B. Haemoglobin

C. Glucose

D. Blood cells

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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 'father of genetics' is

A. Mendel

B. Morgan

C. Darwin

D. Muller

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4

The biologist who believed in the spontaneous creation of microorganisms was

A. Leuwenhock

B. Needham

C. Spallanzeni

D. Pasteur

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4

Which among, the following is a solid lubricant?

A. carbohydrate

B. graphite

C. protein

D. starch

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4

The natural defence of our body against foreign germs is formed by

A. red corpuscles

B. white corpuscles

C. platelets

D. lymph

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4

The germ theory of diseases was put forward by

A. Louis Pasteur

B. Luister

C. Leuwenhoek

D. Flemming

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4

Who coined the term gene?

A. Mendel

B. Devries

C. Jacob and Monod

D. Johanson

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4

Hormone promoting maleness in flowering plants is

A. Indole Acetic Acid

B. Kinetin

C. Cytokinin

D. Gibberellin

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4

The counting of RBC's can be performed by

A. Haemocytometer

B. Haemoglobinometer

C. Clinostat

D. Thermometer

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4

The development of new organs is termed

A. Parthenogenesis

B. Morphogenesis

C. Histogenesis

D. Paedogenesis

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4

Two tall plants, each being a hybrid and carrying a recessive factor for dwarfness are crossed. What proportion of their offspring will be dwarf?

A. 0.5

B. 0.25

C. 0.75

D. 1

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4

Prions are composed largely of

A. DNA

B. proteins

C. RNA

D. None of these

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4

The most accepted theory of the origin of earth is the fiery origin which was propounded by

A. Laplace

B. Chamberlain

C. James Jean

D. Hoyle

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4

Desert plants are called

A. Xerophytes

B. Bryophytes

C. Pteridophytes

D. Halophytes