Define and understand the following terms: 

(ii) Class 

Define and understand the following terms: 

(iii) Family 

Define and understand the following terms: 

(iv) Order 

As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics

• Will decrease

• Will increase

• Remain same

• May increase or decrease

The term ‘systematics’ refers to:

• Identification and classification of plants and animals

• Nomenclature and identification of plants and animals

• Diversity of kinds of organisms and their relationship

•  Different kinds of organisms and their classification

20.

______ are useful in providing information for the identification of the species found in an area.