identify $a, b, c, d$ from figure :
$a-b-c-d$
Stoma - Air cavity - Substomal cavity - Palisade mesophy-$II$
Stoma - Phloem - Sub-stomal cavity - mesophy-$II$
Abaxial epidermis -Phloem - Substomal cavity - Spongy mesophy-$II$
Sub stomatal cavity - Xylem - Abaxial epidermis - mesophy-$II$
Bulliform cells in grass leaves show
Grass leaves can fold and unfold because they
$T.S.$ of dicot leaf passing through the midrib is given below, certain parts have been indicated by alphabets. Choose the correct option
In Dicot leaf
In a dorsiventral leaf, location of palisade tissue and phloem respectively are