Minamata disease is caused by pollution of water by :

Commercially valued cork is obtained from :

What do you understand by the term Dark Fermentation ?

Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms ?

In a poultry unit, the factor most influencing the cost is the cost of

The heat treatment applied to milk before distribution to stabilize and to remove disease causing bacteria is called as :

Plants which flower only once in their life time are known as

The larvae of cockroach is called

In which of the following animals, is open circulatory system found?

Biogradable wastes can usually be converted into useful substances with the help of:

Which one of the following is a condition of delayed blood clotting?

Housefly spreads

The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is :

The edible part of Cabbage is

Animals do not have enzyme systems which enable them to make use of the energy from :