Question

Evolutionary importance of pteridophytes are
1) initiation of heterospory
3) amphibian of plant kingdom
2) first vascular plants on the earth
4) 1 & 2​

Answer 1

Answer:

1) initiation of Heterospory.

Explanation:

In the evolution of plants, Pteridophyta is intermediate between bryophytes and gymnosperms. All bryophytes are homosporous and all gymnosperms are heterosporous. Microspores and megaspores is a characteristic feature in the life cycle of a few members of Pteridophyta and all spermatophytes.

So the correct option is 'Pteridophyta, Spermatophyta.'