- In biology, a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae. Inert substrates are used as growing support materials in the hydroponic cultivation of plants. In biology substrates are often activated by the nanoscopic process of substrate presentation.
- Porter, Washington (Wikipedia)
Porter is an unincorporated community and census-designated place (CDP) in Grays Harbor County, Washington, United States. The population was 204 at the 2020 census, slightly down from 207 at the 2010 census. Prior to 2010 it was part of the Malone-Porter CDP; Malone and Porter are now separate CDPs. They are located just off U.S. Route 12, southeast of Elma and northwest of Oakville, and along a shortline that is part of the Puget Sound and Pacific Railroad.