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Which one of the endocrine glands disappears after puberty?

A. Thyroid

B. Thymus

C. Adrenals

D. Pituitary

Correct Answer :

B. Thymus


Related Questions

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Cancer is induced by certain viruses called

A. poxviruses

B. adenoviruses

C. oncogenic viruses

D. herpesviruses

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Aphids are

A. insect pests

B. fungal pests

C. bacterial pests

D. viral pests

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The plants will stop growing if the shoot tip is cut off because

A. shoot tip produces growth hormones

B. shoot tip contains meristematic cells

C. shoot tip is the growing part

D. the plant dies

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Which one of the following animals stores water in the intestine?

A. Moloch

B. Camel

C. Zebra

D. Uromastix

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A plant cell is distinguishable from an animal cell by the presence of

A. nucleus

B. cell wall

C. chloroplasts

D. cell membrane

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Lizards, snakes, crocodiles and turtles belong to the class

A. Aves

B. Reptilia

C. Mammalia

D. Amphibia

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The disease in which blood clotting does not take place is known as

A. xerophthalmia

B. haemopoiesis

C. haemophilia

D. haemoerythrin

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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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The pathogenic organisms of an infected person are destroyed by the action of

A. erythrocytes

B. leucocytes

C. blood platelets

D. all of these

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Infection of salivary glands by a virus leads to

A. tetanus

B. mumps

C. pyorrhoea

D. ulcers

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Organisms that depend only on raw plant products are said to be

A. herbivorous

B. vegetarian

C. carnivorous

D. omnivorous

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The thermoregulatory centre in the human brain is the

A. Pituitary

B. Spinal cord

C. Cerebellum

D. Hypothalamus

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Green plants synthesise carbohydrates by the

A. holozoic method

B. holophytic method

C. saprophytic method

D. parasitic method

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Maintenance of pregency is under the control of

A. Follicular stimulating hormone

B. Growth hormone

C. Estrogen

D. Progesterone

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Lamarck's theory of inheritance of acquired characters was challenged by

A. August Weismann

B. Hugo de Vries

C. Herbert- Spencer

D. Carl Linnaeus

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The cavities of the brain are filled with

A. Blood

B. Lymph

C. Water

D. Cerebrospinal fluid

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The hormones are carried to target organs through the

A. blood

B. lymph

C. water

D. corpuscles

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Insects that make a clicking sound are

A. crickets

B. beetles

C. flies

D. silver fish

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Nekton are those organisms

A. which cannot be netted

B. which are independent of tides and waves

C. which have long necks

D. None of the above

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What is an antigen?

A. toxic substance

B. a kind of protein

C. blood platelets

D. blood corpuscles

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The biogenetic law was proposed by

A. Alfred Russel Wallace

B. Charles Darwin

C. Ernst von Haeckel

D. Lamarck

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The ultimate substances to which the carbohydrates are degraded are

A. amino acid

B. glycerol

C. glucose

D. maltose

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Sexual selection theory was propounded by

A. Wallace

B. De Vires

C. Lamarck

D. Charles Darwin

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At the end of a reaction enzymes are

A. left as they are

B. reduced

C. increased

D. neutralised

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Loss of blood is

A. clotting

B. receding

C. healing

D. drying up

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What do you mean by the term fauna?

A. plant kingdom

B. animal kingdom

C. both plant and animal kingdoms

D. A part of plant kingdom

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Clotting of blood is

A. a chain reaction

B. reversible reaction

C. reflex action

D. no reaction

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Blood is a kind of

A. epithelial tissue

B. connective tissue

C. nervous tissue

D. cartilage

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Deciduous forests are those with trees

A. that are evergreen

B. that shed leaves periodically

C. that have needle like leaves

D. that have no leaves at all

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Temperature treatment which shortens the vegetative period and hastens the flowering is called

A. Phototropism

B. Photoperiodism

C. Vernalisation

D. Thermoregulation