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Kingdom Animalia : 11th Biology Chapter 4 : Exercise Solutions - Questions and Answers | Maharashtra State Board New Syllabus |

Standard XI - Biology Chapter 4 : Kingdom Animalia - Exercise
Questions  & Answers - Maharashtra State Board New Syllabus

4. KINGDOM ANIMALIA - Exercise

1. Choose correct option. 

A. Which of the following belongs to minor phylum ? 

A. Comb jelly
B. Jelly fish
C. Herdmania
D. Salpa

Answer: B. Jelly fish

B. Select the animal having venous heart. 

A. Crocodile
B. Salamander
C. Rohu
D. Toad

Answer : D. Toad

C. In Ascaris,   .............. 

A. Mesoglea is present
B. Endoderm is a discontinuous layer
C. Mesoderm is present in patches
D. Body cavity is absent.

D. Which of the following is incorrect in case of birds ? 

A. Presence of teeth
B. Presence of scales
C. Nucleated RBCs
D. Hollow bones

Answer : A. Presence of teeth

E. Chitinous exoskeleton is a characteristic of......... 

A. Dentalium
B. Antedon
C. Millipede
D. Sea urchin

2. Answer the following questions

A. Reptiles are known for having three chambered heart. Which animal shows earlier four chambered condition in reptiles ?

B. The circulatory system has evolved from open to close type in animal kingdom. Which Phylum can be called first to represent closed circulation ?

C. Pinna is a part of external yeah and it is found in mammal. Do aves and reptiles show external ear in any form ?

D. Fish and frog can respire in water. Can they respire through their skin ? If yes, why do they have gills ?

E. Birds need to keep their body light to help in flying.
Hence, they show presence of some organs only on one side. How there is skeleton helps in reducing their weight ?

F. Cnidarians and Ctenophorans are both diploblastic, which other character do they have in common, which is not found in other Phyla ?

G. Crab and Snail both have protective covering. Is it  made up of the same material ?

H. Sponge and sea star show calcareous protective material. Do they belong to same Phylum ?

I. Fish and snake noth have scales. How do these scales differ from each other ?

J. Lower phyla like Arthropods and Cnidarians show metamorphosis . Is it also found in any class of Phylum Chordata ?

3. Draw neat labelled diagram . 

A. Sycon 
B. Aurelia
C. Amphioxus 
D. Catla
E. Balanoglossus
F. Scolidon 

4. Match the following .

Phylum      Characters 



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