Flower & Fruit Morphology

Question 1

What are the 4 features that define angiosperms?

Answer 1

1) possesion of a flower with a stamen and ovaries, which eventually become a fruit.
2) reduction of the gametophyte stages as a pollen grain and embryo sac
3) double fertilization, resulting in a zygote and an endosperm.
4) vessel elements in the xylem, which are efficient water conducting cells.