The walls are embedded with silica and thus the walls are indestructible in $:-$

Unicellularity is a characteristic of

Which of the following are the characters of dinoflagellates?
$(i)$ They are planktonic golden yellow algae with soap box like structure.
$(ii)$ They are marine biflagellated protista.
$(iii)$ They appear yellow,green,brown,blue and red in colour.
$(iv)$ The cell wall has stiff cellulose plates on the outer surface.
$(v)$ They are saprophytic (or) parasitic unicellular forms.

The excretion in $Entamoeba \ histolytica$ takes place by

Select the incorrect statement for Chrysophytes:

Which of the following statements is incorrect?