Ans. Production of fishes are called Pisciculture. Fish feed are provided  from out side. It gives only food substances…

Ans. The meaning of animal husbandry is the domistication of animals which are reared only for economic purposes such a…

Ans Dairying is the management of animals for milk and its products for human consumption. Management procedures that…

Ans :--   Single cell protein (SCP) can  be produced by growing microorganisms on substrates of industry ef…

Ans :-   Apiculture is the rearing and maintenance of hives of honey bees for the production of honey. It is an age-old…

Ans. It is an important aspect of animal husbandry which aims at increasing the production of animals and i…

Ans. For making virus-free plants the apical or axillary meristems are good  as they are free from virus. M…

Ans :--  Microbe is a minute life form. Microbes are diverse-protozoa, bacteria, fungi and microscopic plants viruses,…

Ans. There are two main methods employed in animal breeding - Natural breeding and artificial breeding. (a)…

Ans. Agents, which increase the  rates of mutation, are known as  mutagens. There are two main  classes of …

Ans:--   The production of plants is the process of cultivating and bringing the certain changes in the wil…

Ans. The main purpose of plant breeding is the genetic improvement of the crop in order to create desired plant type wh…

Ans. The traditional breeding techniques failed to keep the balance with increasing demand and to provide accurate, fas…

Ans. The Ascaris (common roundworm) belongs to Helminthes. It is pathogenic  to man. Ascaris is an intestin…

Ans. Scientific name of the pathogen causing amoebiasis is Entamoeba histolytica. Its infective state is Cy…

Ans.  (a) Differences between innate and acquired immunity:--- Innate immunity :-- (i) It consists all the defence elem…

Ans. There are several reasons causing the drug addiction. (1) Curiosity:--  Frequent reference of  drugs …

Ans :-   Important measures for prevention and control of infectious diseases are following:- (i) Consumpt…

Ans. Study of biology has helped us to know about causes of diseases, carriers  of diseases (vectors), effects of disea…

Ans :-   It is estimated that a large population in the world do not have adequate food for their daily r…