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NCERT Solutions for Class 11 Biology Chapter 4

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NCERT Solutions for Class 11 Biology Chapter 4 - Animal Kingdom

Class 11 Biology Chapter 4 NCERT Solutions are essential study materials that will help the students to secure better marks in the exam. Expert and proficient science teachers prepare the Animal Kingdom Class 11 NCERT Solutions. The NCERT solution comprises precise answers, along with diagrams and explanations. The questions presented in solution books are organised by NCERT (CBSE), thus holding higher chances of appearing on CBSE question papers. 


Grab the NCERT solution for Class 11 Biology Chapter 4 to get answers to the chapter. The solutions are easily accessible and free to download.

NCERT Solutions for Class 11 Biology Chapter 4 Animal Kingdom part-1
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FAQ (Frequently Asked Questions)

Q1. What is the Importance of Body Coelom and Cavity in the Classification of Animals?

Ans: The coelom is the fluid-filled or body cavity space followed by the mesoderm. Animals possessing coelom are called coelomates. The body cavity in some animals is not filed by mesoderm; instead, it is presented as deranged pouches in between the endoderm and ectoderm. This body cavity is called pseudocoelom, and the animals who are possessing them are known as pseudocoelomates, for example – aschelminthes. Animals whose body cavity is absent are referred to as acoelomates, example – Platyhelminthes. The classification of coelom and body cavity are essential to determine the complexity of an animal at the organ level.

Q2. Why are the Arthropods the Largest Species Among the Animal Kingdom?

Ans: Arthropods are the most thriving animals and form the largest group of the Animal Kingdom. They have captured land, sea and air and are known as the three fourth of currently identified living and fossil organisms. They rank in distribution from mountain peaks to the deep sea. The thick, non-living chitinous integument develops the exoskeleton which shields the organism from predators, prevents water loss and helps to resist the temperature up to 100°C or more. They can reproduce very fast, and in less time. Cockroaches, an example of arthropods can even endure nuclear radiations. All these factors make arthropods the largest species among animals.

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