Categories: Disambiguation | Biological matter Biological tissue is any substance made up of cells that perform a similar function within an organism. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... An Antarctic krill, whose species comprises roughly 0. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Biotic material is any natural material that originated from living organisms. ... A bio-based material is simply an engineering material made from substances derived from living tissues. ... Biological matter or biological material refers to the unique, highly organized substances of which cellular life is composed of, for instance membranes, proteins, and nucleic acids. ... Organic material or organic matter is informally used to denote a material that originated as a living organism; most such materials contain carbon and are capable of decay. ... Viability can mean: In an environmental conservation context, viability indicates the ability of a conservation target to persist for many generations or over long time periods. ... Image File history File links Disambig_gray. ...