In dicot stem, secondary xylem lie towards the …$A$… and secondary phloem lie towards the …$B$…

Choose the correct combination of options for $A$ and $B$

Druse is a crystal or deposit of

According to histogen theory, stem epidermis is derived from

$I.$ Sunflower seed

$II.$ A wheat leaf

$III.$ Pea plant

$IV.$ Leaf blade of grass

Bulliform cells are present in which of the above plants?

Raphides are found in