21. First pet animal of man is

1. 1. Dog

   
   
   

   2. Cow

   
   
   

   3. Goat

   
   
   

   4. Cat

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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22. The largest mammal is

1. 1. Elephant

   
   
   

   2. Camel

   
   
   

   3. Blue whale

   
   
   

   4. Man

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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23. Animal who became extinct recently is/are

1. 1. Draco

   
   
   

   2. Dinosaurs

   
   
   

   3. Teradectyly

   
   
   

   4. Mamtha

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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24. Life cycle of Plasmodium in mosquito was discovered by

1. 1. Louis Pasture

   
   
   

   2. Ronald Ross

   
   
   

   3. Charles Darwin

   
   
   

   4. Mendal

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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25. Which of the following is also known as green protozoa

1. 1. Amoeba

   
   
   

   2. Paramecium

   
   
   

   3. Leshmania

   
   
   

   4. Euglena

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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