71.Insulin was discovered by :

72.Which of the following pairs is correctly matched ?

73.Which of the following diseases is/are likely to spread in the entire community if a leaky septic tank contaminates the water supply ?1. Cholera 2. Typhoid3. Tuberculosis 4. Leprosy

74.There are approximatley .......... muscles in human body

75.Absence or Inadequacy of proteins in human diet will produce : 1. weakening of bodys defences against infections 2. impairment of bodys growth 3. impairment of hormones needed by the body4. impairment of the cells ability to convert heat into energy