Time gap required after pollination for the maturation of pinus, female cone is about

Most advanced type of classification given below is

The Gymnosperms sexual reproduction structure are arranged in

In pinus, root hairs are absent in the root system. In these plants water nutrients are absorbed with the help of

The common mode of a sexual reproduction in algae is

Vessel producing pteridophyte is _________

Select odd from the list

Taxonomy of organism by the use of their cytological characters is called _______________