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FAQs on NCERT Textbook: Biological Classification - Science & Technology for UPSC CSE

1. What is biological classification?
Ans. Biological classification is the process of categorizing and organizing living organisms based on their shared characteristics and evolutionary relationships. It helps in understanding the diversity of life and provides a systematic way to study and classify different species.
2. Why is biological classification important?
Ans. Biological classification is important because it helps in identifying and studying different organisms, understanding their relationships, and predicting their behavior and characteristics. It provides a framework for organizing vast amounts of biological information, making it easier for scientists and researchers to communicate and share their findings.
3. What are the different levels of biological classification?
Ans. The different levels of biological classification, from broad to specific, are kingdom, phylum, class, order, family, genus, and species. These levels form a hierarchical system, where each level represents a different degree of relatedness among organisms.
4. How is biological classification based on evolutionary relationships?
Ans. Biological classification is based on evolutionary relationships because it is believed that all living organisms share a common ancestry. Organisms that are more closely related share more recent common ancestors and therefore have more similarities in their characteristics. By examining the similarities and differences among organisms, scientists can determine their evolutionary relationships and classify them accordingly.
5. What is the significance of binomial nomenclature in biological classification?
Ans. Binomial nomenclature is a two-part naming system developed by Carl Linnaeus for naming species. It assigns each species a unique scientific name consisting of a genus name and a species name. This system helps in providing a standardized and universally recognized way to identify and refer to different species, regardless of the language or region. It avoids confusion and ensures accurate communication among scientists worldwide.
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