In human body, the digestion of protein begins in which of the following organs?

In the buccal cavity of human being digestion of which one of the following get started?

Which one of the following processes in the bodies of living organisms is a digestive process?

Which one of the following human organs is responsible for detoxification of alcohol?

In human body most of the digestive process, takes place in -

The process by which blood is purified in human body is called