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Syllabus

The Living World — Syllabus

CBSE · Class 11 · Biology

What The Living World covers in CBSE Class 11 Biology: 4 topics, for the 2026-27 session. Part of the CBSE Class 11 Biology syllabus.

153 questions76 flashcards5 concepts

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4 Topics · CBSE Class 11 Biology · 2026-27

Topics in The Living World

1

Diversity in the Living World

  • Living organisms occur in a huge variety of forms and habitats.
  • Each different kind of plant, animal, or organism is a species.
  • The number of known and described species ranges between 1.7 and 1.8 million.
2

Nomenclature and Binomial Nomenclature

  • Nomenclature is the standardisation of naming living organisms.
  • Scientific naming gives each organism only one universal name.
  • Plants are named under ICBN, and animals under ICZN.
3

Classification and Taxonomy

  • Classification groups organisms into convenient categories based on observable characters.
  • Taxa are the categories used in classification.
  • Taxonomic hierarchy is the ordered arrangement of categories from species to kingdom.
4

Taxonomic Categories: Species to Kingdom

  • Species is the lowest taxonomic category for both plant and animal kingdoms.
  • Genus is a group of related species with more characters in common than species of other genera.
  • Family is a group of related genera with fewer similarities than genus.

Key Concepts

Central concept: The Living World

Diversity in living worldNeed for namingIdentificationTaxonomySystematicsBinomial nomenclatureRules of biological namingInternational codes

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Frequently Asked Questions

What are the important topics in The Living World for CBSE Class 11 Biology?
Key topics in The Living World include Diversity in the Living World, Nomenclature and Binomial Nomenclature, Classification and Taxonomy, Taxonomic Categories: Species to Kingdom. Study these first, then practise questions on each for Class 11 exams.
How should I revise The Living World for Class 11 exams?
Learn the core ideas first, then work through the 153 practice questions on The Living World. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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