The embryo in sunflower has

In cereals,the cotyledon is called:

What are $P$ and $Q$ in the given dicot seed?
$P \quad\quad Q$

$A$ type of seed germination in which the epicotyl region of the embryo elongates rapidly to pull the plumule out of the soil surface is called . . . . . . germination.

In a cereal grain,the single cotyledon of embryo is represented by

In which of the following does the seed germinate while still attached to the main plant?