Xylem position in secondary xylem is
Exarch
Endarch
Mesarch
None of these
(d) Because there is no variation in protoxylem and metaxylem in cells of secondary xylem.
Which element of xylem is the characteristic feature of angiosperms?
The phloem of angiosperms differs from that of other vascular plants by the presence of
Bordered pits are found in
Xylem vessels and phloem companion cells are generally absent in
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