A biological breakdown of waste. Learn why feces contains both living (biotic) and non-living (abiotic) components, complicating its ecological definition.
Metalloids mark the critical boundary on the Periodic Table. Learn where these semi-conductive elements are found and how they define the transition from metals to nonmetals.
Understand why men find blood in their urine. Explore causes—from common infections and stones to serious prostate concerns—and the vital next steps for diagnosis.