How does the Volvox eliminate waste?

Volvox, a type of colonial green algae, eliminates waste primarily through diffusion. As water circulates around the colony, metabolic waste products, such as carbon dioxide and ammonia, diffuse out of the cells into the surrounding environment. Additionally, the movement of flagella in the colony helps facilitate this process by creating currents that aid in the removal of waste. This efficient waste elimination is crucial for maintaining the health of the colony.