(a) Root absorbs water and minerals from the soil.
(b) Stem holds the plant upright.
(c) Stem conducts water to the leaves.
(d) The number of petals and sepals in a flower may be different in different plants.
(e) If the sepals of a flower are joined together, then its petals may or may not be joined together.
(f) If the petals of a flower are joined together, then the stamen may or may not be joined to the petal.