Diversity In The Living World

Answer (a) Order and genus

Theophrastus is known as Father of Botany. He prepared a list of about plants and divided them into trees, shrubs, undershrubs and herbs. He also distinguished between annual, biennial and perennial plants.

The system of Binomial nomenclature was developed by Linnaeus (Philosophia Botanica, ). Binomial nomenclature is the system of naming organisms using a two-part Latinized (or scientific) name that was devised by the Swedish botanist Carolus Linnaeus; it is also known as the Linnaean system. The first part is the generic name (genus), the second is the specific epithet or name (species).

The Linnaean hierarchy has various taxon. Any taxon represents the basic/fundamental unit of classification.
These in ascending order are Species Genus Family Order Class Phylum Kingdom.