Related words. 1  post verb. 2  post up phrasal verb. 3  post off phrasal verb.  cross-post 1  verb. 1. a public notice, especially one advertising a job Synonyms and related words. Types of advertisement:ad, advert, advertisement...  2. a job that someone is sent somewhere to do, usually in another country Synonyms and related words.
Catalytic RNAs, or ribozymes, are a fossil record of the ancient molecular evolution of life on Earth and still provide the essential core of macromolecule synthesis in all life forms today.
Chyme is the partially digested mass of food that is forced into the small intestine. It has a low Ph balance that is countered by the production of bile, helping to further digest food. Chyme combined with bile ultimately is secreted from the body in the form of bowel movements. Part liquid and part mass, chyme does not resemble the actual food from which it derives. This is because the stomach has long since broken the food down into its components, like proteins and fats.