Last molar tooth in human beings is called:

1. Adult tooth
2. Wisdom tooth
3. Child tooth
4. Elder's tooth

The hardest substance in your body is:

1. Dentine
2. Bone
3. Cement
4. Enamel

Proteins of the milk are converted into curd by the enzyme:

1. Trypsin
2. Rennin
3. Pepsin
4. Erepsin

Bile juice is produced by:

1. Stomach
2. Liver
3. Pancreas
4. Gall bladder