These protozoans form colonies. A mature spherical colony of Eudorina.

Eudorina

These protozoans form colonies. A mature spherical colony of Eudorina.

These protozoans form colonies. Formation of the two kinds of reproductive cells of Eudorina.

Eudorina

These protozoans form colonies. Formation of the two kinds of reproductive cells of Eudorina.

These protozoans form colonies. Gonium pectorale colony seen from above.

Gonium

These protozoans form colonies. Gonium pectorale colony seen from above.

These protozoans form colonies. Gonium pectorale colony seen from the side.

Gonium

These protozoans form colonies. Gonium pectorale colony seen from the side.

These protozoans form colonies. Pandorina colony colony seen from above.

Pandorina

These protozoans form colonies. Pandorina colony colony seen from above.

These protozoans form colonies. Pandorina cells just fused.

Pandorina

These protozoans form colonies. Pandorina cells just fused.

These protozoans form colonies. Pandorina cells completely fused.

Pandorina

These protozoans form colonies. Pandorina cells completely fused.

These protozoans form colonies. The large spherical colonies of Volvox globator are composed of several thousand cells around a hollow center.

Volvox

These protozoans form colonies. The large spherical colonies of Volvox globator are composed of several…

These protozoans form colonies. The large spherical colonies of Volvox globator are composed of several thousand cells around a hollow center. This is a type of reproductive cell.

Volvox

These protozoans form colonies. The large spherical colonies of Volvox globator are composed of several…