Fluids flowing in.
A stream which flows into another stream or a lake.
An organism having an important effect on a plant or animal community.
Flowing in.
Exercising astral influence.
Having an important effect on a plant or animal community.
A fluid that flows out.
Any outward movement.
Something that flows out of a sewage treatment plant.
The process of flowing out.
A stream of gaseous material emanating from an active galactic nucleus.
The part of a system that allows material to flow out.
To flow outward.