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What is the correct answer?

4

Fishes send out their nitrogenous waste as

A. ammonia

B. urea

C. uric acid

D. sweat

Correct Answer :

A. ammonia


Related Questions

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4

It Is not advisable to sleep under a tree at night because of release of

A. oxygen in a lesser quantity than the required levels

B. oxygen in large amounts

C. carbon monoxide

D. carbon dioxide

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4

Lizards, snakes, crocodiles and turtles belong to the class

A. Aves

B. Reptilia

C. Mammalia

D. Amphibia

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4

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

A. Phototropism

B. Photoperiodism

C. Vernalisation

D. Thermoregulation

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4

Measles and influenza are caused by

A. virus

B. bacteria

C. insects

D. nematodes

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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

Blood plasma from which fibrinogen is removed is known as

A. serum

B. blood concentrate

C. lymph

D. antibody component

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4

Carbohydrates are mainly needed for

A. growth

B. immunity

C. repair

D. energy

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4

Vaccine for influenza has been discovered by

A. Khorana

B. John

C. Mittel

D. Salk

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4

Blood of cockroach is

A. red

B. bluish

C. greenish

D. colourless

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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

Which hormone is secreted when there is a rise in the blood glucose level?

A. Glucagon

B. Insulin

C. Nor-adrenaline

D. Thyroxine

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4

Which organism probably arrived first in the world?

A. Algae

B. Fungi

C. Protozoa

D. None of the above

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4

Prions are composed largely of

A. DNA

B. proteins

C. RNA

D. None of these

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4

The tear glands help us in

A. sobbing

B. protecting the eye

C. preventing dust

D. providing a clean moist surface

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4

Bird nu is a disease which affects and spreads through

A. Cattle

B. Sheep

C. Prawn

D. Poultry

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4

Warm-bloodedness

A. means, animals living in warm climates

B. means, the warming up of blood as the temperature increases during day time

C. is characterised by constant body temperature

D. is shown by reptiles

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4

The two German scientists who proposed the 'cell theory' were

A. Mendel and 'Darwin

B. Theodore Schwann and Matthias Schleiden

C. Virchow and Purkinje

D. porter and Palade

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4

The pH of normal urine of man ranges from

A. 6 - 8

B. 4.5 - 6

C. 2.5 - 6

D. 8 10

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4

A biopsy is performed on a patient generally to detect which one of the following?

A. Cancer

B. Tuberculosis

C. Appendicitis

D. Renal failure

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4

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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4

Waldeyer gave the name

A. microsome

B. chromosome

C. ribosome

D. lysosome

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4

Wallace's line is a line

A. drawn by Darwin

B. across the mountains

C. between two zoo-geographical areas

D. between different classes of animals

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4

The energy for the sperm to swim and reach the egg is provided by

A. tail

B. head

C. neck

D. mitochondria

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4

Who discovered the electron microscope?

A. Knoll and Ruska

B. Rudolf and Kolliker

C. Robert Hooke

D. CP Swanson

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4

If a father has blood group A and the mother has blood group 0, which one of the blood groups may be found in their progeny?

A. A

B. AB

C. O

D. Both (a) and (c)

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4

Eye is an organ that can be called as

A. Phonoreceptor

B. Thigmoreceptor

C. Photoreceptors

D. Rheoreceptor

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4

Vessels leaving the heart are

A. veins

B. arteries

C. capillaries

D. lymph ducts

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4

Which among the following is a Cast growing tree?

A. Teak

B. Eucalyptus

C. Banyan

D. Coconut

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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

AIDS is caused by the organisms which are

A. bacteria

B. fungi

C. viruses (HTLV III)

D. Protozoa