A description paragraph is required when you are asked to write about how something looks, sounds, smells, tastes or feels. You should provide specific details of the most important features and use appropriate adjectives to describe attributes and qualities.

Basis of Classification– The characteristics based on which the living organisms can be classified. Characteristic: A distinguishing quality, trait or feature of an individual seen in all members of the same species.

Importance of classification: –It helps to understand the inter relationships among different groups of organisms. –It also helps to compare and study the evolution of organisms according to their hierarchy. –Every field of biology depend upon classification in some way or other.

The systematic arrangement of things on the basis of certain similarities or differences is called sorting or classification. Ex: 1. Healthy foods. Junk foods.

Answer: One way in which classification is used at school is the separation of different subjects and subject materials. For instance one day you may go to a math class, while another day you may go to a french class.

Classification is the technique which involves arranging the organisms by taking in account some similar features and differences in the organisms. It is useful because : 1. It makes study of the organisms better and easier.

Classification of materials helps us in ascertaining which two materials are similar in nature. It also helps in dividing the materials based on their composition and their properties. It simplifies the task and lets us devote our time to the more important aspects of materials.

Answer: Classification is a method of grouping, in which we place similar things together in one group. Example: Arrangement of books in a library is an example of classification. In a library, books on the same subject are kept in one place, so that it will not be difficult to locate them.

We classify the objects because it gives us the following advantages: 1 The classification of objects into groups make it easier to locate them and work with them. 2 If we know the properties of any one member of the group, we can get an idea of the properties of the other members of this group.

The following are the properties of materials.

• Roughness or smoothness.
• Hardness or softness.
• Transparency, translucency or opaqueness.
• Physical state (solid, liquid or gas)
• Appearance (shiny or dull)
• Solubility or insolubility in water.
• Heaviness or lightness with respect to water.
• Attraction towards magnet.

The materials are classified on the basis of certain properties such as: (1) Appearance. (2) Hardness or softness. (3) Solubility and insolubility in water. (4) Heaviness or lightness with respect to water.

Advantages of classification of objects are:

• It makes identification of objects easy.
• It helps in sorting of objects.
• It hels in locating things.
• It helps in understanding similarites and dissimilarites among objects.
• It helps to know about properties of objects easily.

The advantages of classifying organisms are as follows: (i) Classification facilitates the identification of organisms. (ii) helps to establish the relationship among various groups of organisms. (iii) helps to study the phylogeny and evolutionary history of organisms.

Grouping the objects helps us to arrange them in a systematic manner. The objects when grouped are easy to handle. When grouped, it is easy to know the properties of an object clearly. Grouping also makes easy to compare two objects.