61. Only male frog produces croacking sound because

1. 1. Female frog have no layrny

   
   
   

   2. Female frog have layrnx but no vocal cord

   
   
   

   3. Male frog have three pair of vocal cord

   
   
   

   4. Male frog can magnify their voice with the help of sound box

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

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62. Archaeopteryz is a connecting link between

1. 1. Reptile and mammal

   
   
   

   2. Birds and mammal

   
   
   

   3. Reptile and Bird

   
   
   

   4. Amphibian and reptile

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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63. Which one of the following carries out the function in human being similar to the one which Malpighian tubules perform in cockroach and other insects?

1. 1. Lung

   
   
   

   2. Kidneys

   
   
   

   3. Heart

   
   
   

   4. Reproductive organs

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

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64. Archaeopteryx is

1. 1. Ancient bird of Jurrasic period

   
   
   

   2. Reptile of Jurrasic period

   
   
   

   3. Reptile of Triasic period

   
   
   

   4. Reptile Jurrasic and triasic period both

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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65. Consider the following statements
    1. Tape worm is harmaphrodite
    2. Round worm has separate sexes
    3. Filaria is caused by a mematode
    4. Guinea worm is an annelid
    Which of these are correct?

1. 1. 1 and 2

   
   
   

   2. 1, 2 and 3

   
   
   

   3. 3 and 4

   
   
   

   4. 2, 3 and 4

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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