Intercellular spaces are found in ...$A$... region. Intercellular spaces are absent in ...$B$... region. Choose the correct option for $A$ and $B$
$A-$ cortex, $B-$ endodermis
$A-$ endodermis, $B-$ cortex
$A-$ endodermis, $B-$ pericycle
$A-$ cortex, $B-$ pericycle
Describe internal structure of sunflower root.
In root, xylem is
Polyarch condition is found in which of the following?