Match List-$I$ with List-$II$:

Thorns,spines and prickles work as . . . . . . in plants.

The plant having monadelphous stamens and axile placentation is

$A$ non-succulent xerophyte with thick leathery leaves having a white sticky waxy coating is:

Consider the following statements:
$I$. In racemose inflorescence,the flowers are borne in a basipetal order.
$II$. Epigynous flowers are seen in rose plant.
$III$. In brinjal,the ovary is superior.
Which of these statements are correct?

Categorise the following plants into hydrophytes,halophytes,mesophytes,and xerophytes. Give reasons for your answers.
$(a)$ Salvinia $(b)$ Opuntia $(c)$ Rhizophora $(d)$ Mangifera