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.
1 The scientific name of a species is made up of its genus and species, and it is written in italics (Genus species) with the genus capitalized. 2  You will find these names in most encyclopedia entries about animals. The scientific name of a species is made up of its genus and species, and it is written in italics (Genus species) with the genus capitalized. 2  You will find these names in most encyclopedia entries about animals.