Read the following statements and choose the correct option: 1. Genera like Selaginella and Salvinia which produce two kinds of spores, macro and micro spores, are known as heterosporus. 2. The megaspores and microspores germinate and give rise to male and female gametophytes, respectively. 3. The Pteridophytes are further classified into four classes: Psilopsida (Psilotum); Lycopsida (Selaginella, Lycopodium), Sphen

Step-by-step solution

Genera like Selaginella and Salvinia which produce two kinds of spores, macro and micro spores, are known as heterosporus. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. The Pteridophytes are further classified into four classes: Psilopsida (Psilotum), Lycopsida (Selaginella, Lycopodium), Sphenopsida (Equisetum) and Pteropsida (Dryopteris, Pteris, Adiantum). Fusion of male gamete with the egg present in the archegonium result in the formation of zygote. Zygote