The protist in which the cell size decreases with each division is $.......$.

Select the correct option for the pellicle.

Which of the following algae secretes 'saxitoxin'?

The vegetative phase of slime molds is known as .......

The organism belonging to this group causes the disease amoebiasis.

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.