protozoa

Euglena cut to white showing green photosynthetic colour and organelles

Hylobacter schematic illustration showing the bacteria with fringes

Pen and ink illustration of a the life in a drop of water under the microscope including Paramecium amoeba bell-animalcule and algae

Micro organism group amoeba euglena paramecium cut to white

Amoeba cut to white idealised schematic illustration in blue with organelles clearly depicted

Diatom group showing diverse shapes and colours of these organisms