Question

How are phanerogamae divided into subdivisions wiki?

Answer 1

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Phanerogams -
1. Gymnosperms 
2. Angiosperms 

The plants with well differentiated and visible  reproductive tissues that ultimately make seeds . The seed of phanerogam consist of the embryo along with the stored food which helps in the initial growth of the embryo during germination . Gymnosperms and Angiosperms are phanerogams that is seed producing plants.