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Gasoline was once a byproduct of oil refining that later became a desirable commodity as motor fuel. The plastic used in plastic shopping bags also started as a by-product of oil refining. [1] By-products are sometimes called co-products to indicate that although they are secondary, they are desired products. For example, hides and leather may ...
Placental mammals expel urine from the bladder through the urethra during urination. [1]Metabolic wastes or excrements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
Cellular waste products are formed as a by-product of cellular respiration, a series of processes and reactions that generate energy for the cell, in the form of ATP.One example of cellular respiration creating cellular waste products are aerobic respiration and anaerobic respiration.
Byproducts [ edit ] A shimmery substance found on fish scales , most usually obtained from herring and one of many by-products of commercial fish processing , can also be used for pearlescent effects, primarily in nail polish, but is now rarely used due to its high cost, bismuth oxychloride flakes being used as a substitute instead.
The three most quoted oil products are North America's West Texas Intermediate crude (WTI), North Sea Brent Crude, and the UAE Dubai Crude, and their pricing is used as a barometer for the entire petroleum industry, although, in total, there are 46 key oil exporting countries.
The formation of carbon dioxide – a byproduct of ethanol fermentation – causes bread to rise. Ethanol fermentation causes bread dough to rise. Yeast organisms consume sugars in the dough and produce ethanol and carbon dioxide as waste products. The carbon dioxide forms bubbles in the dough, expanding it to a foam.
Chlorination disinfection byproducts [ edit ] Chlorinated disinfection agents such as chlorine and monochloramine are strong oxidizing agents introduced into water in order to destroy pathogenic microbes, to oxidize taste/odor-forming compounds, and to form a disinfectant residual so water can reach the consumer tap safe from microbial ...
Stephen Jay Gould and Richard Lewontin used the architectural term spandrel (the triangular gap at the corner of an arch) to describe a byproduct of evolution. Basilica di San Marco , Venice . In evolutionary biology , a spandrel is a phenotypic trait that is a byproduct of the evolution of some other characteristic, rather than a direct ...