Most developed world countries have accepted the chronological age of 65 years as a definition of 'elderly' or older person, but like many westernized concepts, this does not adapt well to the situation in Africa.
Binomial Nomenclature. The present system of binomial nomenclature identifies each species by a scientific name of two words, Latin in form and usually derived from Greek or Latin roots.The first name (capitalized) is the genus of the organism, the second (not capitalized) is its species.inomial Nomenclature. The present system of binomial nomenclature identifies each species by a scientific name of two words, Latin in form and usually derived from Greek or Latin roots.
You may see many of these other sublevel taxa listed in the taxonomic tree of an organism. The classification levels become more specific towards the bottom. Many organisms belong to the same kingdom, fewer belong to the same phylum, and so on, with species being the most specific classification.A species is one group of genetically distinct, interbreeding organisms.or example, two animals that belong to the same family and genus are more closely related than two animals that simply belong to the same family. Here are two examples of the Linnaean taxonomic system of classification, for humans and armadillos: