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Read the passage carefully. Then choose the correct answer.
 
The skin on a human and on some animals might not look and feel the same but they serve the same purpose; to protect the delicate tissues underneath. For animals, their coverings also serve as protection from the harsh environments as well as predators.

There are many types of animal coverings. for the mammals, they have skin that can grow and repair itself. It is also elastic, stretching to allow the animal to move in a lot of different ways. Insects, however, are normally covered with a hard, inflexible outer shell. This is excellent protection against other animals that might attack it. However, it does not allow the insects much movement.

Another important role of the covering is to provide the animal with a water resistant seal, that is, it provides a barrier for water to enter or exit the animal. For land animals, the skin prevents water from leaving the body by locking in the moisture. Otherwise, land animals will quickly die and shrivel if exposed to air for too long. For aquatic animals however, the opposite happens. Too much water in the aquatic animals' bodies can be fatal.

Many vertebrates have a covering on top of their skin that provides added protection. Hair, fur, and feathers help to insulate animals from the cold, just as a winter coat keeps you warm on a cold day. These coverings, as well as scales, also protect the skin.

     
    ALL ANSWERS MUST BE IN COMPLETE SENTENCES
     
  1. What is the main purpose of coverings on both human and animals ?
     
  2. How is the skin being elastic helpful to the animal ?
     
  3. How do you think the covering of an insect protects it from attacks by other animals ?
     
  4. What happens to aquatic animal when too much water enter their bodies ?
     
  5. How does thick fur on a polar bear help ?
       
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  Answers
   
  1. It is to protect the delicate tissues underneath.
   
  2. It allows the animal to move in a lot of different ways.
   
  3. ( accept any reasonable answer )
   
  4. They can die
   
  5. It helps to insulate the polar bear from the cold.
   
 
 
 
 

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