Promeristems can be distinguished from primary meristems by
Their power of active division
Their apical position
The presence of large prominent nucleus
All the above
Which of the following is true for endarch type of primary xylem?
The phloem of angiosperms differs from that of other vascular plants by the presence of
Give differences : Sieve cell and Sieve tubes
The companion cells are specialized ........ which are closely associated with sieve tube elements.