Pollen exine exhibit a fascinating array of pattern and design. So exine character is an important character for?

Presence of claspers is an important character in

The important character of cobra is

Write one important character of viruses.

The most important character of chordata is

Consider the following statements with respect to pollen grains (a) Exine is thin, continuous layer made up of cellulose and pectin (b) Hard outer layer called exine is made of sporopollenin (c) Sporopollenin is present in germ pores (d) Exine exhibits a fascinating array of patterns and designs. Of the above statements

Most important character of all sponges :

Sculpturing of exine of pollen is important in

The most important mammalian character of rat is