Question

state the advanced features present in and seen for the first time in the following groups: 1)pteridophytes 2) gymnosperm3) angiosperm.

Answer 1

pteridopyta: presence of vascular tissue for the 1st time
gymnosperm: bore seeds (but are not naked) for the 1st time
angiosperm: bore flower for the 1st time .... 
 i hope it helps...