Saccharomyces creavisiae is the example of________?

Pashmine is the very fine under coat of the ________?

The cellular structure which always disappears during mitosis is________?

The various works constructed on river side to control the flow and pass it safely from hydraulic structures are called ________?

The most suitable species for reclamation of sandy soils is:________?

Availability of Phosphorus is maximum at:________?