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NCERT Solutions for Class 11

NCERT Solutions for Class 11 Biology Chapter 4 Free PDF Download

NCERT Solutions for Class 11 Biology Chapter 4 – Animal Kingdom

This article deals with NCERT Solutions for Class 11 Biology Chapter 4. Class 11 is certainly a critical time in a student’s life. However, once again NCERT Solutions returns like an old friend. Class 11 Biology is a challenge, and NCERT Solutions can readily meet it. In other words, these solutions make class 11 Biology an easy interesting subject. Above all, the preparations of these solutions take place by expert teachers. Furthermore, these teachers know advanced Biology extensively.

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Download NCERT Solutions for Class 11 Biology here

Download NCERT Solutions for Class 11 here

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CBSE Class 11 Biology Chapter 4 – Animal Kingdom NCERT Solutions

NCERT Solutions for Class 11 Biology Chapter 4 deals with the Animal Kingdom. Firstly, animals refer to multicellular organisms. Animals are all around us. In other words, the animal kingdom certainly is a very important kingdom in Biology. Furthermore, animals are of different types. Animals have different structures and forms. Also, there has been a discovery of over a million species of animals. Consequently, this shows the great need for classifying animals appropriately. Classification of animals helps in giving a position to species.

ncert solutions for class 11 biology chapter 4

Sub-topics covered under NCERT Solutions for Class 11 Biology Chapter 4

  • 4.1 Basis of Classification
    • 4.1.1 Levels of Organization
    • 4.1.2 Symmetry
    • 4.1.3 Diploblastic and Triploblastic Organization
    • 4.1.4 Coelom
    • 4.1.5 Segmentation
    • 4.1.6 Notochord
  • 4.2 Classification of Animals
    • 4.2.1 Phylum– Porifera
    • 4.2.2 Phylum- Coelenterata(Cnidaria)
    • 4.2.3 Phylum- Ctenophora
    • 4.2.4 Phylum- Platyhelminthes
    • 4.2.5 Phylum- Aschelminthes
    • 4.2.6 Phylum- Annelida
    • 4.2.7 Phylum- Arthropoda
    • 4.2.8 Phylum- Mollusca
    • 4.2.9 Phylum- Echinodermata
    • 4.2.10 Phylum- Hemichordata
    • 4.2.11 Phylum- Chordata

NCERT Solutions for Class 11 Biology Chapter 4

This chapter is a very important part of class 11 in Biology. Furthermore, the chapter would help students in preparation for zoology. Most importantly, the animal kingdom is a topic that has wide applications in many fields. Thus, the classification of animals would certainly help in the quick identification of animals. In addition, it would serve as an official record of all animal species. Therefore, this record is of paramount importance when dealing with animals. Finally, it is essential for improvements in medical science.

4.1 Basis of Classification –

The various features of animals serve as the basis of animal classification.

4.1.1 Levels of Organization – There are three levels of the organization. Furthermore, these three levels are- cellular, tissue, and organ.

4.1.2 Symmetry – Here categorization of animals takes place. Most importantly, this categorization is on the basis of animal symmetry.

4.1.3 Diploblastic and Triploblastic Organization – Animals in which arrangement of cells is in two embryonic layers are Diploblastic. In contrast, triploblastic are those in which the developing embryo has a third germinal layer.

4.1.4 Coelom – This involves the presence or absence of a cavity between the body wall and the gut wall. Furthermore, this presence or absence of a cavity is essential in classification. Most importantly, this body cavity is coelom.

4.1.5 Segmentation – There is an external and internal division of the body into segments. Hence, this is segmentation.

4.1.6 Notochord – It refers to a mesodermally derived rod-like structure.

4.2 Classification of Animals –

Here is a broad classification of Animalia. Above all, it is based on common fundamental features. Below are different types of Phyla.

You can download NCERT Solutions for Class 11 Biology Chapter 4 PDF by clicking on the button below

ncert solutions for class 11 biology chapter 4 pdf download

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