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The Living World

Punjab Board · Class 11 · Biology

Complete topic list for The Living World in Punjab Board Class 11 Biology. Key concepts, sub-topics, and what to focus on for board exams.

45 questions24 flashcards5 concepts

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4 Topics · Punjab Board Class 11 Biology

Topics in The Living World

1

1. Diversity in the Living World

  • Earth is home to an incredibly diverse range of living organisms found in every type of habitat – from cold mountains and hot springs to deep oceans and deserts.
  • The total number of known and described species ranges between 1.7 to 1.8 million. This is called BIODIVERSITY.
  • Each different kind of plant, animal, or organism is called a SPECIES.
2

2. Rules of Binomial Nomenclature

  • Biological names are generally in Latin and written in italics.
  • They are Latinised or derived from Latin irrespective of their origin.
  • The first word (genus) starts with a CAPITAL letter.
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3. Taxonomic Categories and Hierarchy

  • Classification is NOT a single-step process – it involves a HIERARCHY of steps called TAXONOMIC HIERARCHY.
  • Each step in the hierarchy represents a rank or category called a TAXONOMIC CATEGORY.
  • All categories together constitute the TAXONOMIC HIERARCHY.
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4. Taxonomic Table – Key Examples (Table 1.1)

  • Human (Man): Biological Name – Homo sapiens | Genus – Homo | Family – Hominidae | Order – Primata | Class – Mammalia | Phylum – Chordata
  • Housefly: Biological Name – Musca domestica | Genus – Musca | Family – Muscidae | Order – Diptera | Class – Insecta | Phylum – Arthropoda
  • Mango: Biological Name – Mangifera indica | Genus – Mangifera | Family – Anacardiaceae | Order – Sapindales | Class – Dicotyledonae | Division – Angiospermae

Key Concepts

Biodiversity refers to the total numberNomenclature is the standardized systemBinomial nomenclature is a twoIdentification is the process of determiningClassification is the process of grouping

Frequently Asked Questions

What are the important topics in The Living World for Punjab Board Class 11 Biology?
Key topics in The Living World include Taxonomic Hierarchy Overview, The Living World – Complete Chapter Overview, The Living World - Complete Concept Overview. These are the concepts Punjab Board Class 11 examiners draw on most — study them first, then practise related questions.
How to score full marks in The Living World — Punjab Board Class 11 Biology?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and 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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