Study the following statements and choose the correct option.
$I -$ Tapetum nourishes the developing pollen grains.
$II-$ Hilum represents the junction between ovule and funicle
$III-$ In aquatic plants such as water hyacinth and water lily, pollination is by water:
$IV-$ The primary endosperm nucleus is tripoid.
$I \;and \;II\; are \;correct \;but \;III \;and \;IV \;are\; incorrect$
$I, II \;and \;IV \;are \;correct\; but \;is \;incorrect$
$II, \;III \;and \;IV \;are \;correct \;but \;I \;is \;incorrect$
$I \;and \;IV\; are\; correct \;but\; II\; and \;III \;are\; incorrect$
Definations / Explanation :
$1.$ Dioecious
$2.$ Non albuminous
Give differences : Anther and Ovary
Name the common function that cotyledons and nucellus perform.
It is not included in post fertilisation event
Differentiate between:
$(a)$ Integument and testa;
$(b)$ Perisperm and pericarp.