Raphides are needle-like crystals made up of

Identify the correct terms for the given analogy-based questions:
$(i)$ Pea : Marginal placentation :: Dianthus : .....
$(ii)$ Solanaceae : Capsule :: Fabaceae : ..........

Identify the given figures and select the correct option.

Thorns,spines and prickles are

Placentation in the given figure is found in which plant?

Extreme xerophytic condition is shown by