organic process
biological process

Waste water treatment is a biological process, a living thing just like your body.

The role of energy is fundamental to such biological processes.

How is an understanding of biological processes to be applied to the social world?

Enough water may be produced for physical, chemical, and biological processes.

You look at the biological process the same way, no matter what your religion.

Each has numerous benefits on various biological processes in the body.

Though sleep is a primarily biological process, it can be treated as a behavior.

Free radicals play an important role in a number of biological processes.

Instead of growing up, I had, as it were, grown down, and thus reversed a natural biological process.

The individual is the key, the final effective unit of all biological processes.