sink
1. A drain to carry off filthy water; a jakes.
2. A shallow box or vessel of wood, stone, iron, or other material, connected with a drain, and used for receiving filthy water, etc, as in a kitchen.
3. A hole or low place in land or rock, where waters sink and are lost; called also sink hole. Sink hole. The opening to a sink drain. A cesspool. Same as Sink.
The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tutorial will be more or less a quick review of the various principles of water motion in reference to plants. ..
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The size and depth of a still body of water are major factors in determining the characteristics of that ecosystem. Learn in this elaborate tutorial how life thrives in and influenced by a still-water habitat...
