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 the basic unit of biological classification and a taxonomic rank. A species is often defined as the largest group of organisms in which two individuals can produce fertile offspring, typically by sexual reproduction.