Exercises1.2.What are the advantages of classifying organisms?How woul

1.	Exercises1.2.What are the advantages of classifying organisms?How would you choose between two characteristics to be usedfor developing a hierarchy in classification?Explain the basis for grouping organisms into five kingdoms.What are the major divisions in the Plantae? What is the basisfor these divisions?How are the criteria for deciding divisions in plants differentfrom the criteria for deciding the subgroups among animals?Explain how animals in Vertebrata are classified into furthersubgroups.3.4.5.6.
Answer» 1)Theadvantages of classifying organismsare as follows: (i)Classificationfacilitates the identification oforganisms. (ii) helps to establish the relationship among various groups oforganisms. (iii) helps to study the phylogeny and evolutionary history oforganisms. 2)Before developing a hierarchy in classification, we need to decide which characteristics should be used as the bass for making the broadest divisions. Then we should pick up next set of characteristics for making sub-groups. This process must continue and each time new characteristics should be used. The characteristics that decide the broadest divisions among living organisms should be independent of any other characteristics. For example, nature of cells and form of the body is considered to classify organisms into broad divisions. The characteristics in the next level should be dependent on the previous one that will decide the subsequent divisions of the groups. 3)The five kingdom classification was proposed by R.H. Whittaker in 1969. It includes Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Plantae, and Kingdom Animalia. The five kingdoms were formed on the basis of following characteristics.cell structuremode of nutritionsource of nutritionbody organisation

Exercises1.2.What are the advantages of classifying organisms?How would you choose between two characteristics to be usedfor developing a hierarchy in classification?Explain the basis for grouping organisms into five kingdoms.What are the major divisions in the Plantae? What is the basisfor these divisions?How are the criteria for deciding divisions in plants differentfrom the criteria for deciding the subgroups among animals?Explain how animals in Vertebrata are classified into furthersubgroups.3.4.5.6.

Answer»

1)Theadvantages of classifying organismsare as follows: (i)Classificationfacilitates the identification oforganisms. (ii) helps to establish the relationship among various groups oforganisms. (iii) helps to study the phylogeny and evolutionary history oforganisms.

2)Before developing a hierarchy in classification, we need to decide which characteristics should be used as the bass for making the broadest divisions. Then we should pick up next set of characteristics for making sub-groups. This process must continue and each time new characteristics should be used. The characteristics that decide the broadest divisions among living organisms should be independent of any other characteristics.

For example, nature of cells and form of the body is considered to classify organisms into broad divisions.

The characteristics in the next level should be dependent on the previous one that will decide the subsequent divisions of the groups.

3)The five kingdom classification was proposed by R.H. Whittaker in 1969. It includes Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Plantae, and Kingdom Animalia.

The five kingdoms were formed on the basis of following characteristics.*cell structure*mode of nutrition*source of nutrition*body organisation

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