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4

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

Correct Answer :

B. which are independent of tides and waves


Related Questions

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4

Oxygen transportation in human body takes place through
1) Blood
2) Lungs
3) Tissue
The correct sequence of transportation is

A. 1, 2 and 3

B. 3, 1 and 2

C. 2, 1 and 3

D. 1,3 and 2

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4

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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4

Ecology of a population is known as

A. demecology

B. synecology

C. autecology

D. space ecology

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4

The grey matter of the brain is so coloured because of the concentration of

A. nerve cells

B. a pigment

C. nerve fibres

D. melanin

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4

Which of the following terms is used in Botany?

A. Recession

B. Dumping

C. Barter System

D. Biennial

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4

Kwashiorkar is characterised by

A. dermatitis, changes in hair pigments and retarded brain growth

B. excretion of creatine in excess

C. tyrosinosis and alcaptonuria

D. None of these

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4

The oldest era is

A. Palaeozoic

B. Mesozoic

C. Cenozoic

D. Proterozoic

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4

One of the following disease cannot be prevented by the DPT (triple-antigen) immunization of children.

A. Tetanus

B. Tuberculosis

C. Whooping cough

D. Diphtheria

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4

A child goes on vomiting profusely and develops symptoms of diarrhoea. Chances are that in the child's blood serum there is a drop In

A. calcium

B. iron

C. sodium

D. phosphorus

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4

The protein synthesis takes place in

A. Ribosomes

B. Chromosomes

C. DNA

D. None of these

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4

In one minute normally the heart beats

A. 60 times

B. 80 times

C. 100 times

D. 72 times

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4

Which of the following is a good and rich source of vitamin 'C'?

A. Milk

B. Radish

C. Mango

D. Lemon Juice

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4

Insects that make a clicking sound are

A. crickets

B. beetles

C. flies

D. silver fish

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4

Fibrinogen is present in

A. lymph

B. liver

C. blood plasma

D. pancreas

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4

Plantain is

A. a tree

B. an annual herb

C. a perennial herb

D. a shrub

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4

Which organelle in the cell, other than nucleus, contains DNA?

A. Centriole

B. Golgi apparatus

C. Lysosome

D. Mitochondrion

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4

Loss of blood is

A. clotting

B. receding

C. healing

D. drying up

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4

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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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

Appearance of offspring resembling their remote ancestor is called

A. Atavism

B. Lethality

C. Mutation

D. Progeny

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4

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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4

The protoplasm of a child is exactly the same as that of its

A. mother

B. father

C. grandfather

D. identical twin

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4

Dwarf plants can be made to attain their normal stature by applying

A. IAA

B. Ethylene

C. Gibberelins

D. Cytokinins

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4

Which of the following contains the highest protein content per gram?

A. Groundnut

B. Soyabean

C. Apple

D. Wheat

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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

Who is called the father of modem antiseptic surgery?

A. Edward Jenner

B. Joseph Lister

C. Louis Pasteur

D. William Harvey

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4

Sleeping sickness in man is caused by the organism

A. plasmodium

B. entamoeba

C. giardia

D. trypanosome

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4

Blood is

A. acidic

B. alkaline

C. neutral

D. like a buffer

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4

Egg laying animals are referred to as

A. viviparous

B. oviparous

C. ovoviviparous

D. vegetative

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4

Which of the following organelles is known as the 'power House' of the cell?

A. Golgi Bodies

B. Ribosomes

C. Mitochondria

D. None of these