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Vestigeal organs are those which are

A. fully formed and functional

B. much reduced but functional

C. much reduced and functionless

D. fully formed but functionless

Correct Answer :

C. much reduced and functionless


Related Questions

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Origin of species was published by

A. Lamarck

B. Weismann

C. de Vries

D. Charles Darwin

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Which among the following animals has the largest Intestine?

A. Cow

B. Lion

C. Monkey

D. Tiger

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Translocation of food takes place in plants through

A. xylem

B. phloem

C. cambium

D. cortex

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Vitamin D is known as anti-rachitic vitamin because it cures the deficiency disease called

A. Rickets

B. Beriberi

C. Xerophthalmia

D. Sterility

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Which one of the following is not caused by bacteria?

A. Tuberculosis

B. Typhoid

C. Cholera

D. Mumps

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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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The age of a tree can be determined by

A. counting the number of annual rings

B. thickness of the bark

C. the bulk of the tree

D. the number of leaves

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The blood of cockroach shows the following characteristics except one. Mark it.

A. It serves to distribute nutrient directly to every part of the body

B. It contains several kinds of corpuscles without haemoglobin

C. It collects metabolic wastes

D. It carries oxygen

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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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Which one of the following was probably absent in the atmosphere at the time of origin of life?

A. Ammonia

B. Oxygen

C. Hydrogen

D. Carbon

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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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The acid that is secreted in the stomach is

A. HCI

B. H2SO4

C. H2CO3

D. HNO3

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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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The smallest size of a cell which can be seen directly by the eye is

A. One micron

B. 10 micron

C. 100 micron

D. 1000 micron

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The part of the brain in Control of Voluntary muscles is

A. cerebellum

B. medulla oblongata

C. pons

D. cerebrum

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Antibodies are formed in

A. lymph nodes

B. red bone marrow

C. spleen

D. liver

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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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Biocatalysts are

A. hormones

B. vitamins

C. enzymes

D. pheromones

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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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Chromosome theory of inheritance was propounded by

A. Sutton and Boveri

B. Mendel

C. Muller

D. Beadle and Tatum

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Diabetes is a disease which is

A. contagious

B. non-communicable

C. communicable

D. epidemic

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Phenylketonuria is an example of an inborn error of metabolism. Thins error refers to

A. hormonal overproduction

B. atrophy of endocrine glands

C. inherited lack of an enzyme

D. nondisjuction of chromosomes

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HIV causes

A. cancer

B. hepatitis

C. AIDS

D. Herpes

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Green plants In the sea are useful for respiration of flash because they

A. release oxygen

B. release carbon dioxide

C. release oxygen and carbon dioxide simultaneously

D. take oxygen and give out carbon dioxide

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Which of the following plays an important part in photosynthesis?

A. Chloroplast

B. Centrosome

C. Tonoplast

D. Nematoblast

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Vessels proceeding to the heart are

A. veins

B. arteries

C. capillaries

D. lymph ducts

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Mutations could be created by X-rays. This was found by

A. Muller

B. Morgan

C. Meyer

D. Flemming

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Measles and influenza are caused by

A. virus

B. bacteria

C. insects

D. nematodes

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Insulin is concerned with the metabolism of

A. sugar

B. fats

C. proteins

D. vitamins

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Bovine Spongiform Encephalopathy refers to

A. Brain Fever

B. Mad Cow Disease

C. Enteric Fever

D. Poultry Diarrhoea