In a vascular bundle, if Protoxylem is towards pericycle and metaxylem towards the centre, the condition is reffered to as:-
Distinguish between the following.
(a) Exarch and endarch condition of protoxylem
(b) Stele and vascular bundle
(c) Protoxylem and metaxylem
(d) Interfascicular cambium and intrafascicular cambium
(e) Open and closed vascular bundles
(f) Stem hair and root hair