The practice of growing of two or more crops simultaneously on the same piece of land at the same time is called

Name the mechanical tissue which is composed of dead cells with heavily lignified cell walls and no intercellular spaces.

Egg laying animals are called

'Spirogyra' is a/an

Which type of soil is best suited for growing cotton?

Which of the following is an edible fungi?

Metamerism is a characteristic feature of

Which of the following are the locomotary organs in earthworms?

The branch of science dealing with the study of fossils is called

Selaginella, Lycopodium, Equisetum and Dryopteris are the examples of

Out of the following which one is an important neurotransmitter?

Which of the following type of bacteria causes leprosy?

The science of vegetable culture is referred to as

The causative agent of tuberculosis (T.B.) disease is

AIDS (Acquired Immuno Deficiency Syndrome) is caused by a:

Plants that occur in deserts are known as

Causative agent of elephantiasis (characterised by swollen legs) is

Who is known as the 'Father of taxonomy'?

Name the tissue that forms inner lining of our mouth?

What is the ratio of carbon, hydrogen and oxygen in carbohydrates?

Sprain is caused by the excessive stretching of

The oceans, rivers, streams, lakes, ponds, polar ice caps, water vapour etc. collectively form the

Name the plant tissue concerned with the transportation of food?

Skin of reptiles is covered by

Which food sample will you select to test the presence of starch?

Presence of 'pneumatic bones' is the characteristic feature of