-Since reproductive process such as pollination and fertilisation are independent of water,seed formations is more dependable.
-Seeds have better adaptive stratigies for dispersal to new habitats and help the species to colonose in other areas.
-As they have suffucient food reserves young seedings are nourished until they are capable of photosynthesis on their own.
-The hard seed coat provides protection to the young embryo.
-Being products of sexual reproduction, they generate new genetic combinations/variations.
-Dehydration and dormancy of mature seeds are crucial for survival under adverse conditions.