The arrangement (disposition and number) of bristles or setae on the body and appendages – of particular importance in the classification of Diptera and mites:

Chemicals, which transmit the chemical message, to individual of various species________?

The centre of origin of sunflower is________?

Almost one third of the land area through out the world is affected by land degradation. Pakistan’s agriculture sector though facilitates employment to >65% but is facing challenges from:

A gene which enhances the natural mutations rate of another gene in the same genome is kanown as________?

That rain fall which is effectively consumed by the plants to meet its consumptive needs is called________?