Define the following terms with examples .
(i) Class (ii) Family (iii) Order (iv) Genus (v) Division

Explanation

(i) Class : A group of related orders constitutes class Ex: In plant kingdom, orders like Malvales, Rosales, Polemoniales are included in the class Dicotyledonae.
(ii) Family : .A group of related Genera. is called family. They are characterised on the basis of both vegetative and reproductive features of plant species.
Ex : Solanum, Nicotiana and Datura are three different Genera but are placed in the family Solanaceae.
(iii) Order: Assemblage of families which exhibit a few similar characters is called order.
Ex: Families like convolvualeceae, Solanaceae are included in the order polemoniales based on the floral characters.
(iv) Genus : A group of related species which has more characters in common in comparison to species of other Genera is called Genus.
Ex: Potato (tuberosum) and Brinjal (melongena) are two different species but are placed in the same Genus, .Solanum!
(v) Division : A group of related chasses. is called Division
Ex : Dicotyledonae and Monocotyledonae two classes with a few similar characters are placed in Division spermatophyta.