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4

The insects do not have blood pigments because

A. there is no blood

B. blood does not have a respiratory function

C. tissues have pigments

D. pigments are elsewhere

Correct Answer :

B. blood does not have a respiratory function


Related Questions

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4

1 gm of carbohydrate gives energy which is about

A. 3 k cal

B. 2 k cal

C. 4.2 k cal

D. 8.1 k cal

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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

pH of blood remains constant due to

A. blood pressure

B. buffer action

C. perspiration

D. respiration

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4

Cretinism is due to the disorder of the glands

A. Thymus

B. Parathyroid

C. Thyroid

D. Adrenal

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4

Timberline shows

A. a line of trees

B. the limit of the forest

C. annual rings

D. height of trees

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Organisms that feed on the excreta of other organisms are called

A. autotrophs

B. heterotrophs

C. coprophagous

D. saprotrophs

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4

Dr Khorana's work relates to

A. synthesis of simple DNA

B. genetic code

C. reduction of mutation

D. synthesis of RNA from bacterial cell

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4

Total number of amino acids in plants is

A. 10

B. 20

C. 30

D. Plenty

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4

Decomposition of organic matter is due to

A. Virus

B. Fungi

C. Bacteria

D. None of these

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4

Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.

A. vitamin A

B. vitamin B

C. vitamin C

D. vitamin E

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4

The hormone that is responsible for secondary sexual character in the male is

A. oestrogen

B. progesterone

C. testosterone

D. prolactin

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4

The artificial kidney is a

A. machine

B. transplant

C. another's kidney

D. other kidney form same body

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The diseases that are caused by lack of vitamins are called

A. deficiency diseases

B. communicable diseases

C. epidemics

D. tropical diseases

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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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4

The science of improving the hereditary qualities of future generations of mankind is referred to as

A. genetics

B. eugenics

C. epigenesist

D. epistasis

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4

Fat present below the skin surface in our body acts as a barrier against

A. loss of heat from the body

B. loss of essential body fluids

C. loss of salts from the body

D. entry of harmful micro-organisms from the environment

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4

Scurvy is a disease caused by the deficiency of vitamin.

A. A

B. B

C. C

D. D

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4

The olfactory area is concerned with

A. smell

B. sight

C. hearing

D. speech

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4

The bile contains the pigments

A. haemoglobin and haemoerythrin

B. biliviridin and bilirubin

C. bilirubin and haemocyanin

D. haemoglobin and biliviridin

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4

Name the nematode which lives in lymph vessels of man.

A. Ascaris

B. Hook worm

C. Filarial worm

D. Guinea worm

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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

Hormone promoting maleness in flowering plants is

A. Indole Acetic Acid

B. Kinetin

C. Cytokinin

D. Gibberellin

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4

Cutting and layering are the methods of plant propagation usually referred to as

A. asexual reproduction

B. sexual reproduction

C. vegetative reproduction

D. gardening

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4

Valves are present inside

A. arteries

B. capillaries

C. veins

D. aorta

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4

The artificial kidney operates on the principle of

A. dialysis

B. diffusion

C. osmosis

D. active transport

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4

Which of the following is a disease of brain?

A. SARS

B. AlDS

C. Diabetes

D. Alzheimer's

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4

Lecuminous plants are recommended for rotation of crops because they

A. kill harmful insects

B. require little amount of water

C. help in Nitrogen fixation

D. are cash crops

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4

Compared to the veins, the walls of arteries are

A. thicker

B. thinner

C. similar

D. very much thinner

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4

Vessels proceeding to the heart are

A. veins

B. arteries

C. capillaries

D. lymph ducts

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The grouping o( blood is based on substances called

A. antibodies

B. antigens

C. antitoxin

D. enzymes