Quick question... "drain tube"?

[the Ferret]

Emissions drain tubes to the best of my knowledge. tHere is another one up under the throttle bodies, short and L shaped. tHe clear ones are made to accumulate emmisions vapors which turn into fluids, and are supposed to be drained upon occassion when you see something in there. The black one I am not sure about but suspect it's some kind of breathing tube due to the slash cut