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.
In biology, a species (abbreviated sp. , with the plural form species abbreviated spp. ) is one of the basic units of biological classification and a taxonomic rank. usable definition of the word species and reliable methods of identifying particular species are essential for stating and testing biological theories and for measuring biodiversity, though other taxonomic levels such as families may be considered in broad-scale studies.