601. An ant can see the objects all around it due to the presence of :
     

1. 1. Eyes over the head
      

   
   
   

   2. Well developed eyes
      

   
   
   

   3. Compound eyes
      

   
   
   

   4. Simple eyes

   
   
   

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1. View Hint View Answer Discuss in Forum

   An ant has compound eye.

   Correct Option: C

   An ant has compound eye.

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602. Biogradable wastes can usually be converted into useful substances with the help of:
     

1. 1. nuclear proteins
      

   
   
   

   2. radio-active substances

   
   
   

   3. viruses

   
   
   

   4. bacteria

   
   
   

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1. View Hint View Answer Discuss in Forum

   Bacteria can convert biodegradable wastes into useful substances.

   Correct Option: D

   Bacteria can convert biodegradable wastes into useful substances.

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603. Which of the following item is not included in Environmental Auditing ?
     

1. 1. Pollution monitoring schemes
      

   
   
   

   2. Scrutiny by the government agencies
      

   
   
   

   3. Safety provisions for industrial workers
      

   
   
   

   4. Storage of toxic chemicals

   
   
   

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1. View Hint View Answer Discuss in Forum

   Scrutiny by the Government agencies is not included in the Environmental Auditing.

   Correct Option: B

   Scrutiny by the Government agencies is not included in the Environmental Auditing.

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604. Among the following sets of salient features, which set does not exclusively characterize mammals?

1. 1. Presence of sweat glands, hairs on skin and diphyodonts
      

   
   
   

   2. Presence of mammary glands, sweat glands and diaphragm
      

   
   
   

   3. Presence of mammary glands, sweat glands and diaphragm
      

   
   
   

   4. Presence of mammary glands, hairs on skin and diaphragm.

   
   
   

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1. View Hint View Answer Discuss in Forum

   Aves are also worm blooded and their heart is four-chambered. Crocodiles (Reptilia) also have fourchambered heart.

   Correct Option: C

   Aves are also worm blooded and their heart is four-chambered. Crocodiles (Reptilia) also have fourchambered heart.

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605. Jaws are absent in :

1. 1. Birds

   
   
   

   2. Fishes

   
   
   

   3. Protochordates

   
   
   

   4. Reptiles

   
   
   

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1. View Hint View Answer Discuss in Forum

   Jaws are absent in Protochordates.

   Correct Option: C

   Jaws are absent in Protochordates.

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