This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
"characteristics of major plant groups"
-mosses (group of plants that had no seeds or flower, do not have vascular system)
-conifers (group of plants that produce seeds,not spores that contained with a cone)
-ferns (group of plants that all have vascular system but no flowers)
-flowering plant (group of plants that are high point of plant evolution and also called angiosperm)

--form of plant--
first, the seed (ripened ovule containing an embryo)
the roots will absorb water and nutrients underground.
the stem will support upward and outward growth.
the leaves will through the process known as photosynthesis.

is a study of form and structure of organism.