Question

Selaginella and Salvinia are considered to represent a significant step towards the evolution of seed habit because:

• A. Megaspores possess endosperm and embryo surrounded by a seed coat
• B. The embryo develops in female gametophyte which is retained on parent sporophyte
• C. Female gametophyte is free and get dispersed like seeds
• D. Female gametophyte lacks archegonia

Answer 1

The correct option is B The embryo develops in female gametophyte which is retained on parent sporophyte

A seed consists of an embryo, stored food, and a seed coat. The seed habit is the most complex and evolutionary successful method of sexual reproduction. Selaginella and Salvinia are considered to represent a significant step towards the evolution of seed habit because embryo develops in female gametophyte which is retained on parent sporophyte.