ICSE Class 11 Biology | 1. Diversity of Living Organisms by Pavan | Learn Smarter
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1. Diversity of Living Organisms

The chapter introduces the immense diversity of living organisms on Earth and emphasizes the significance of classification in understanding this diversity. It outlines the basis for classification and describes the five kingdoms of living organisms, detailing their characteristics and the importance of their classification for systematic studies and evolutionary relationships.

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Sections

  • 1

    Diversity Of Living Organisms

    This section highlights the vast diversity of living organisms and the necessity for their classification into distinct categories.

    Learning Practice

  • 1.1

    Introduction

    Life on Earth is characterized by an immense diversity of organisms which necessitates their classification into groups.

    Learning Practice

  • 1.2

    Need For Classification

    Classification organizes living organisms by their similarities, aiding in the study of biodiversity and evolutionary relationships.

    Learning Practice

  • 1.3

    Basis Of Classification

    Organisms are classified based on characteristics such as morphology, anatomy, physiology, reproduction, and genetics.

    Learning Practice

  • 1.4

    Five Kingdom Classification

    The Five Kingdom Classification divides living organisms into five major kingdoms based on their characteristics.

    Learning Practice

  • 1.5

    Characteristics Of Kingdoms

    This section details the defining characteristics of the five biological kingdoms of life, including Monera, Protista, Fungi, Plantae, and Animalia.

    Learning Practice

  • 1.5.1

    Kingdom Monera

    Kingdom Monera comprises unicellular, prokaryotic organisms that lack true nuclei and membrane-bound organelles.

    Learning Practice

  • 1.5.2

    Kingdom Protista

    Kingdom Protista encompasses mainly unicellular eukaryotic organisms, including algae and protozoans.

    Learning Practice

  • 1.5.3

    Kingdom Fungi

    This section discusses the characteristics of the Kingdom Fungi, emphasizing their eukaryotic nature, chitin-based cell walls, and external nutrient absorption.

    Learning Practice

  • 1.5.4

    Kingdom Plantae

    The Kingdom Plantae comprises multicellular, autotrophic organisms that perform photosynthesis and possess cell walls made of cellulose.

    Learning Practice

  • 1.5.5

    Kingdom Animalia

    Kingdom Animalia encompasses multicellular, heterotrophic organisms characterized by the absence of cell walls and complex tissue organization.

    Learning Practice

  • 1.6

    Importance Of Classification

    Classification is essential for the systematic study of organisms, aiding in understanding their evolutionary relationships.

    Learning Practice

References

b11-1.pdf

Class Notes

Memorization

What we have learnt

  • Life on Earth exhibits a va...
  • The five-kingdom classifica...
  • Classification aids in the ...

Final Test

Revision Tests