Practical purpose of taxonomy or classification is to:
| 1. | facilitate the identification of unknown species | 
| 2. | explain the origin of organisms | 
| 3. | know the evolutionary history | 
| 4. | identify medicinal plants | 
Which arrangement is in correct ascending order?
| 1. | Species < genus < order < family | 
| 2. | Genus < species < family < order | 
| 3. | Order < family < genus < species | 
| 4. | Species < genus < family < order | 
Which of the following taxonomic category is more common in characters as compared to the taxonomic category ‘Genus’?
| 1. | Species | 2. | Division | 
| 3. | Class | 4. | Family | 
Biosystematics aims at:
 
| 1. | The classification of organisms based on broad morphological characters | 
| 2. | Delimiting various taxa of organisms and establishing their relationships | 
| 3. | The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies | 
| 4. | Identification and arrangement of organisms on the basis of cytological characteristics | 
Species are considered:
 
| 1. | basic units of classification | 
| 2. | The lowest units of classification | 
| 3. | The artificial concept of the human mind which cannot be defined in absolute terms | 
| 4. | Real units of classification devised by taxonomists |