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The Living World

Short Answer Type

1. Why are living organisms classified?

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2. Why are the classification systems changing every now and then?

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3. What different criteria would you choose to classify people that you meet often?

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4. What do we learn from identification of individuals and populations?

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Given below is the scientific name of Mango. Identify the correctly written name.

Mangifera Indica

Mangifera indica

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6. Define a taxon. Give some examples of taxa at different hierarchical levels.

Taxa is the scientific term for each unit or category of classification. It indicates categories at different levels.

For example, the basic level of classification is species, followed by genus, family, order, class, phylum or division, in ascending order. The highest level of classification is known as the kingdom. So, each of these categories can be called as a taxon.

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7. Can you identify the correct sequence of taxonomical categories?

(a) Species $bold rightwards arrow$ Order $bold rightwards arrow$ Phylum $bold rightwards arrow$ Kingdom
(b) Genus $bold rightwards arrow$ Species $bold rightwards arrow$ Order $bold rightwards arrow$ Kingdom
(c) Species $bold rightwards arrow$ Genus $bold rightwards arrow$ Order $bold rightwards arrow$ Phylum