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- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_2%3A_The_Physical_Environment/2.2%3A_Water_(Hydrologic)_CycleWater reservoirs are the locations where water is stored. (Note that this term can also refer to artificial lakes created by dams.) Water is found as a liquid on the surface (rivers, lakes, oceans) an...Water reservoirs are the locations where water is stored. (Note that this term can also refer to artificial lakes created by dams.) Water is found as a liquid on the surface (rivers, lakes, oceans) and beneath the surface (groundwater), as ice (polar ice caps and glaciers), and as water vapor in the atmosphere.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/02%3A_The_Physical_Environment/2.02%3A_Water_(Hydrologic)_CycleThe hydrosphere is the area of Earth where water movement and storage occurs. Water is found as a liquid on the surface (rivers, lakes, oceans) and beneath the surface (groundwater), as ice (polar ice...The hydrosphere is the area of Earth where water movement and storage occurs. Water is found as a liquid on the surface (rivers, lakes, oceans) and beneath the surface (groundwater), as ice (polar ice caps and glaciers), and as water vapor in the atmosphere. Water reservoirs are the locations where water is stored. The hydrologic cycle describes how water moves around the world between different reservoirs and forms.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.08%3A_Nervous_System/15.8F%3A_Nitric_Oxide_(NO)This page discusses nitric oxide (NO), a reactive gas with vital physiological roles, synthesized by NO synthase (NOS) in cells like neurons and endothelial cells. NO regulates blood flow, kidney func...This page discusses nitric oxide (NO), a reactive gas with vital physiological roles, synthesized by NO synthase (NOS) in cells like neurons and endothelial cells. NO regulates blood flow, kidney function, and gastrointestinal motility, and has effects on inflammation, endocrine secretion, and nervous system function. It plays a role in fertilization, pathogen elimination, and aging, and is used in medical treatments such as erectile dysfunction.
