The organ which is affected by hepatitis is the liver. There is inflammation of the liver and the disease is characterized by the presence of inflammatory cells in the tissue of the liver.

Correct Option: A

The organ which is affected by hepatitis is the liver. There is inflammation of the liver and the disease is characterized by the presence of inflammatory cells in the tissue of the liver.

Salk's vaccine is known as Polio vaccine. Two vaccines are used to combat Poliomyelitis. The first being developed by Jonas Salk and first tested in 1952.

Correct Option: D

Salk's vaccine is known as Polio vaccine. Two vaccines are used to combat Poliomyelitis. The first being developed by Jonas Salk and first tested in 1952.

Iodine is given as a supplement in the common salt used in cooking to combat Iodine deficiency syndromes in humans as iodine as such is present in small quantity in the sea water.

Correct Option: D

Iodine is given as a supplement in the common salt used in cooking to combat Iodine deficiency syndromes in humans as iodine as such is present in small quantity in the sea water.

Berry-berry is a disease caused by the deficiency of vitamin B₁ (thiamin). East-Asian countries in which people eat predominately polished rice Berry-berry is a prolonged problem.

Correct Option: B

Berry-berry is a disease caused by the deficiency of vitamin B₁ (thiamin). East-Asian countries in which people eat predominately polished rice Berry-berry is a prolonged problem.

When there is oxygen deficit in the muscles, the later starts converting the pyruvate into lactic acid due to which some side-effects occur like acidification of muscles and their fatigue.

Correct Option: A

When there is oxygen deficit in the muscles, the later starts converting the pyruvate into lactic acid due to which some side-effects occur like acidification of muscles and their fatigue.