Leeks can be quite sandy, so careful washing is important. Hereâs how to properly clean a whole leek. 1  Start by removing the outer layer of white (unless it is very fresh or from your own garden).  Trim the base with a sharp paring knife to remove all the roots.
Taxon. Definition. noun, plural: taxa. (taxonomy). (1) Any group or rank in a biological classification into which related organisms are classified.(2) A taxonomic unit in the biological system of classification of organisms, for example: a phylum, order, family, genus, or species.Supplement.axon. Definition. noun, plural: taxa. (taxonomy). (1) Any group or rank in a biological classification into which related organisms are classified.
) is one of the basic units of biological classification and a taxonomic rank. A species is often defined as the largest group of organisms where two hybrids are capable of reproducing fertile offspring, typically using sexual reproduction.ristotle used the words genus and species to mean generic and specific categories. Aristotle and other pre-Darwinian scientists took the species to be distinct and unchanging, with an  essence , like the chemical elements.