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LIFE PROCESSES OF MAN 



All of the animals so far studied have been able to live 

 only in their own limited surroundings. The grasshopper, 

 the earthworm, the paramoecium, and the crayfish are not 

 found in the sea or arctic regions. If the paramoecium or 

 the crayfish is placed in sea water, where the lobster and 

 many unicellular animals live, it dies. On the other 

 hand, if the starfish or some of the seafish are placed in 

 fresh water, they die. All of these animals are adapted 

 to their own limited surroundings. 



Scientists give four reasons in explaining why animals 

 and plants are not adapted to live in all parts of the 

 world: (1) lack of suitable food ; (2) failure in adapting 

 their lives to the peculiarities of climate ; (3) too many 

 enemies ; (4) inability to raise their young. 



STUDENT REPORT 



The following table points out some of the common adaptations 

 in animals. How are they related to the animal's success in life ? Name 

 some other habits which help to protect animals. 



