The degraders of organic matter by worm activity is

The organization involved in pearl oyster culture is 

Ophiophagus hannah refers to

The most common freshwater prawns used in aquaculture is 

The predatory insects are said to be

Which country was economically benefited by making bird excreta?

The pneumonic plague affects

Which is the best time to have blood for filariasis

The silver fishes commonly live among

The characteristic feature of tail in sea snakes is