The shape of guard cells in stomata in sugarcane plant is

In which type of leaf are the vascular bundles of unequal size found on the same leaf blade?

In free-floating plants,the stomata are

Which of the following shows whorled phyllotaxy?

Which of the following two are the resultant of stipule modifications?
$I$. Spines in $Ziziphus$.
$II$. Tendrils in $Smilax$.
$III$. Tendrils in $Nepenthes$.
$IV$. Spines in $Argemone$.
$V$. Thorns in $Bougainvillea$.

In which of the following plants are sunken stomata found?