Primary phloem, secondary phloem, internal phloem and included phloem, occur in the stem of ______________.
Fibres are likely to be absent in
(a) secondary phloem
(b) secondary xylem
(c) primary phloem
(d) leaves
The youngest secondary phloem in a dicot stem is
The diagram shows the stem of a plant. A strip of the outer tissue including the phloem has been removed. What would happen to a plant without functional phloem?