NCERT Solutions for Class 11 Biology Chapter 4

Animal Kingdom Class 11

Chapter 4 Animal Kingdom Exercise Solutions

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Exercise : Solutions of Questions on Page Number : 62

Q1 :  

What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?


Answer :

For the classification of living organisms, common fundamental characteristics are considered.

If we consider specific characteristics, then each organism will be placed in a separate group and the entire objective of classification would not be achieved.

Classification of animals is also important in comparing different organisms and judging their individual evolutionary significance. If only a single characteristic is considered, then this objective would not be achieved.

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Q2 :  

If you are given a specimen, what are the steps that you would follow to classify it?


Answer :

There is a certain common fundamental feature that helps in classification of living organisms. The features that can be used in classification are as follows.

On the basis of above features, we can easily classify a specimen into its respective category.

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Q3 :  

How useful is the study of the nature of body cavity and coelom in the classification of animals?


Answer :

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Q4 :  

Distinguish between intracellular and extracellular digestion?


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Q5 :  

What is the difference between direct and indirect development?


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Q6 :  

What are the peculiar features that you find in parasitic platyhelminthes?


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Q7 :  

What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?


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Q8 :  

Water vascular system is the characteristic of which group of the following:

(a) Porifera (b) Ctenophora (c) Echinodermata (d) Chordata


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Q9 :  

"All vertebrates are chordates but all chordates are not vertebrates". Justify the statement.


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Q10 :  

How important is the presence of air bladder in Pisces?


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Q11 :  

What are the modifications that are observed in birds that help them fly?


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Q12 :  

Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?


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Q13 :  

Segmentation in the body is first observed in which of the following:

(a) Platyhelminthes (b) Aschelminthes (c) Annelida (d) Arthropoda


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Q14 :  

Match the following: 

(a) Operculum (i) Ctenophora
(b) Parapodia (ii) Mollusca
(c) Scales (iii) Porifera
(d) Comb plates (iv) Reptilia
(e) Radula (v) Annelida
(f) Hairs (vi) Cyclostomata and Chondrichthyes
(g) Choanocytes (vii) Mammalia
(h) Gill slits (viii) Osteichthyes

 


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Q15 :  

Prepare a list of some animals that are found parasitic on human beings.


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<< Previous Chapter 3 : Plant Kingdom Next Chapter 5 : Morphology of Flowering Plants >>

Biology : CBSE NCERT Exercise Solutions for Class 11th for Animal Kingdom will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.

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