In roots, the protoxylem lies towards periphery and metaxylem lies towards the centre. Such arrangement of primary xylem is called __________.
1
Xylem fibres
2
Xylem parenchyma
3
Exarch
4
Endarch
In roots, the protoxylem lies towards periphery and metaxylem lies towards the centre. Such arrangement of primary xylem is called __________.