Question

Recent changes in the classification of the plant kingdom are based on

Answer 1

They are divided on the basis of flowering and non-flowering plants I.e. Angiosperms and Gymnosperms

Step-by-step explanation:

Answer 2

studies comparing DNA sequences.

Step-by-step explanation:

That should be the answer if you are taking biology chapter 22, plant evolution. (It's in the book) :)