| Consider the below statements and identify the correct statements regarding classification. |
| (i) Biological classification is the scientific ordering of organisms in a hierarchical series of groups on the basis of their relationships, i.e. morphological, evolutionary and others. |
| (ii) Whittaker classified organisms on the basis of autotrophic and heterotrophic mode of nutrition. |
| (iii) In five kingdom system of classification, living organisms can be divided into prokaryotic and eukaryotic cells on the basis of cell structure. |
A) (i), (ii) and (iii)
B) (i) and (iii)
C) (ii) and (iii)
D) (i) and (ii)
Correct Answer: A
Solution :
| The scientific procedure of arranging organisms into groups and sub-groups on the basis of their similarities and dissimilarities and placing the groups in a hierarchy of categories is known as biological classification. |
| Whittaker has used five criteria for delimiting the different kingdoms- |
| (i) Complexity of cell structure, i.e., prokaryotic aud eukaryotic. |
| (ii) Complexity of body structure or structural organisation of unicellular and multicellular. |
| (iii) Mode of nutrition, which is divergent in multicellular kingdoms, photoautotrophy in Plantae, absorptive heterotrophy in Fungi and ingestive heterotrophy in Animalia. |
| (iv) Methods of reproduction. |
| (v) Phylogenetic relationships. |
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