Describe the body organisation of Dinoflagellates.

(N/A) $\rightarrow$ They appear yellow,green,brown,blue,or red depending on the main pigments present in their cells.
$\rightarrow$ The cell wall has stiff cellulose plates on the outer surface.
$\rightarrow$ Most of them have two flagella; one lies longitudinally and the other transversely in a furrow between the wall plates.