In algae a sexual reproduction occurs through different type of spores commonly known as

After fertilization the secondary nucleus transformed into ______

Numerical taxonomy, cytotaonomy phyto chemistry etc are used in the classification of

The common mode of a sexual reproduction in algae is

Giant algae like macrocystis belongs to the class.

Double fertilization and Triple fusion 1st identified by the famous embryologist

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