The organism belonging to this group causes the disease amoebiasis.

In Euglenoids, the stored food is $Paramylum$, which is a .........

$A$: Holophytic protistans are important phytoplanktons and they contribute $80\%$ of the total photosynthesis.
$R$: They lack chemosynthetic nutrition and utilize non-sulphur organic compounds as the source of electron and proton in carbon assimilation.

In $Amoeba$ and $Paramecium$,osmoregulation occurs through . . . . . . .

The protozoan found in the colon of humans is

Amoeba was described in detail by