Biology  5/e   Raven/Johnson
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Adhesion, cohesion, and capillary movement: When one substance clings (adheres) to another substance, this is called adhesion. When a substance clings to more of the same substance, this is called cohesion. Water adheres to surfaces and coheres to itself. In small diameter spaces, the adhesion to the surface pulls on the water. Because of the strong cohesive forces in water, the water responds to the pull as a unit instead of breaking away and sinking. This process by water rises up small-diameter columns is called capillary action.

Biogeochemical cycles: All substances utilized by organisms are drawn from its environment. Eventually, the substances are returned to the environment through an organism's metabolic processes, including metabolism and decay. This cycling of substances between organisms and the environment makes up biogeochemical cycles.

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