Euglena belongs to which kingdom?

The causal organism for African sleeping sickness is

Protists are:
$1.$ Unicellular and prokaryote
$2.$ Unicellular and eukaryote
$3.$ Multicellular and eukaryote
$4.$ Autotroph and heterotroph

Which of the following organelles are associated with defence in protozoans?

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.

An organism which is a connective link between animals and plants is