The innermost layer of the cortex which shows Casparian thickenings in its cells is called as

Complete the following analogy-type questions:
$(i)$ Innermost layer of cortex : Endodermis :: Layer just inside the endodermis : ........
$(ii)$ Adaxial epidermis in dorsiventral leaf : Palisade parenchyma :: Abaxial epidermis : ...........

Well-developed pith and exarch vascular bundles are characteristics of which of the following?

In .......,there are fewer than six radial vascular bundles.

Considering the root apex of monocotyledons,there are three groups of initials. Which of the following correctly describes their derivatives?

Describe the internal structure of a sunflower root.