there are 20 amino acids.
Los aminoácidos al unirse por enlace peptídico forman también polímeros más pequeños que las proteínas, que se denominan péptidos. ... La bleomicina es un péptido que se encuentra entre los agentes antitumorales.
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d hope it helps u mate have a nice day
My guess is that fat-soluble toxins that may occur in freshwater ecosystems would most affect apex species in these ecosystems. This is because fat-soluble toxins are stored in the fat reserves of animals, and then bioaccumulate up the food chain. So in this case, most of the toxin is not secreted, but stored within the food chain, and bioaccumulates, with the concentration becoming higher the further up the food chain.
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Most nonrenewable resources are formed from organic carbon material which is heated and compressed over time, changing their form into crude oil or natural gas. The term nonrenewable resource also refers to minerals and metals from the earth, such as gold, silver, and iron.
