Receptor 3
Receptor 3 : A receptor is an ecological entity exposed to a stressor. This term may refer to tissues, organisms, populations, communities, and/or ecosystems. While either "ecological component" (U.S. EPA, 1992a) or "biological system" (Cohrssen and Covello, 1989) are alternative terms, "receptor" is usually clearer in discussions of exposure where the emphasis is on the ecological entity exposed to the stressor