156. Oral pills of birth control prevent

1. 1. Ovulation

   
   
   

   2. Fertilization

   
   
   

   3. Pregnency

   
   
   

   4. Entery of sperm in uterus

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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157. Fusion of two gametes called

1. 1. Fertilization

   
   
   

   2. Development

   
   
   

   3. Regeneration

   
   
   

   4. Pollination

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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158. Digestion of starch in mouth takes place by

1. 1. Amylase

   
   
   

   2. Ptyline

   
   
   

   3. Pepsin

   
   
   

   4. Lipase

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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159. Which of the following is nucessary for digestion of food ?

1. 1. Air

   
   
   

   2. Water

   
   
   

   3. Enzyme

   
   
   

   4. Mineral

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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160. The element found in bone and teeth

1. 1. Potassium and calcium

   
   
   

   2. Calcium and Magnesium

   
   
   

   3. Calcium and phosphorus

   
   
   

   4. Phosphorus and sulpher

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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