Waxes are synthesized by several vegetation and animals. All those of animal origin commonly include wax esters derived from a number of fatty acids and carboxylic alcohols. Intelligent Vocabulary: linked text and phrases Engineering - mechanical -engined artificer automative bionic bionics generate shaft engage lover belt go on phrasal verb https://sergiowwvtt.wikidirective.com/7175341/considerations_to_know_about_wax