oldest xylem is

oldest phloem is

oldest phloem is

oldest phloem is

The position of the oldest layer of secondary xylem is :-

In a six year old stem, the oldest layer of secondary xylem is situated just

In a five year-old stem the oldest layer of secondary xylem is situated just outside the primary xylem.

In an old stem, the oldest secondary xylem is found just (a) inner to vascular cambium (b) outside primary xylem (c) outside vascular cambium (d) inner to phellogen

In an old stem, the oldest secondary xylem is found just (a) inner to vascular cambium (b) outside primary xylem (c) outside vascular cambium (d) inner to phellogen

Xylem position in secondary xylem is

in an old stem, the oldest seconedary xylem is found just