The paraflagellar body of $Euglena$ helps in:

Euglena is a:

Flagellar movements are controlled by

Select the correct statements for Dinoflagellates:
$I -$ Mostly found in freshwater.
$II -$ Photosynthetic.
$III -$ Possess two flagella - one longitudinal and one transverse.
$IV -$ Cell wall has stiff cellulose plates on the outer surface.
$V -$ Dinoflagellates appear in different colors.

The presence of macronucleus and micronucleus is a characteristic feature of $......$.

Which of the following statements is correct for dinoflagellates flagella?