Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
absence of secondary phloem
presence of cortex
position of protoxylem
absence of secondary xylem.
Root cap is a specialized protective structure found on the tips of the terrestrial vascular plants only. The cells of this root cap are
Which of the following have sunken stomata?
$DNA$ content of quiescent zone is
In stem which layer forms epidermal tissues
Plant tissues are divided into meristematic and permanent tissues on which of the following basis?