The exact pathway of occurrence of endocrine disruptors is not completely certain, however several pathways have been proposed.

The body keeps the amount of acid fairly consistant, though I cannot tell you the exact pathway by which this regulation occurs.

The multiple-stress hypothesis explains the observed facts, although it does not confirm the exact pathways or relative importance of individual pollution factors.

One study has been done to determine the exact pathway used by tumstatin to induce apoptosis.

However, the exact pathway and the reason for this switching of pathways is still unknown.

Important connections between the cerebrum and the olive of the same side exist, but the exact pathway is unknown.

The exact mechanism or the exact pathways that these two are involved in are unknown at this time.

It turns out that the re-emitted amplified waves will return along the exact pathway (no matter how complicated) and re-focus at the original source, but greatly amplified.

The exact molecular pathways behind this phenomenon have yet to be fully understood.

Despite the progress that has been made, many things are still not understood about the suture biology and the exact causative pathways remain yet to be completely understood.