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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

Correct Answer :

D. beyond which light does not penetrate


Related Questions

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Kangaroo is one of the animals popularly called as

A. egglaying

B. pouched

C. placental

D. Volant

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The mouth of a river opening into the sea is termed as

A. shore line

B. littoral zone

C. continental shelf

D. estuary

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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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Oxygen transport is a function of

A. White Blood Corpuscles

B. Red Blood-Corpuscles

C. Blood Platelets

D. Plasma

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What ia leukaemia?

A. proliferation of WBC

B. decrease of RBC

C. increase of platelets

D. decrease of WBC

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Which among the following is a Cast growing tree?

A. Teak

B. Eucalyptus

C. Banyan

D. Coconut

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An inherited characteristic which does not appear in one generation but can appear in the next is called

A. dominant

B. recessive

C. homozygous

D. heterozygous

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Phonoreceptor refers to the perception of

A. light

B. sound

C. touch

D. smell

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Fibrinogen is present in

A. lymph

B. liver

C. blood plasma

D. pancreas

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Blood plasma from which fibrinogen is removed is known as

A. serum

B. blood concentrate

C. lymph

D. antibody component

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Bio indicators are

A. stains

B. pH indicators

C. weather indicators

D. soil indicators

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Which of the following characteristics separates man from all other primates?

A. Exhibition of curiosity

B. Degenerate sense of smell

C. Opposability thumb

D. Projecting chin

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The bacteria that gets into our body is consumed by

A. RBC

B. Blood platelets

C. Plasma

D. Phagocytes

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When does the heart start functioning?

A. At birth

B. After birth

C. Before birth

D. After a week from birth

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Chemical substances that called have effect on growth of plants are called

A. enzymes

B. catalysts

C. hormones

D. pesticides

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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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The endocrine glands secrete

A. bile

B. harmones

C. sweat

D. genes

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Pneumonia is ,a bacterial disease caused by the type of bacteria called

A. Bacilli

B. Cocci

C. Sprilli

D. Vibrio

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Phototropism means that plants react to the direction of

A. sound

B. wind

C. light

D. gravity

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The 'mad-cow disease' (Jakob-Creutzfeldt disease) is produced by certain

A. bacterium

B. virus

C. viroid

D. prion

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The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.

A. Caeselpinea

B. Bryophyllum

C. Centella

D. None of the above

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Pulse rate is measured in the wrist by observing the jerks of blood In the

A. veins

B. capillaries

C. arteries

D. nerves

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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

Blood cancer is otherwise called

A. Leukaemia

B. Leucoderma

C. Leucocytopenia

D. Erythrocemia

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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 larva of the housefly is called

A. maggot

B. caterpillar

C. grub

D. wriggler

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Eosinophil™s are stained by

A. alkaline dyes

B. acidic dyes

C. neutral dyes

D. vital stains

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Which one of the endocrine glands disappears after puberty?

A. Thyroid

B. Thymus

C. Adrenals

D. Pituitary

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Kwashiorkar is a deficiency disease

A. due to poor intake of proteins

B. due to poor intake of carbohydrates

C. due to (a) and (b)

D. due to poor intake of lipids

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Loss of blood is

A. clotting

B. receding

C. healing

D. drying up