निम्नलिखित में से कौन सा हार्मोन/वृद्धि कारक यकृत (लिवर) द्वारा स्रावित होता है?

Which gland is commonly referred to as the 'Clock of Ageing'?

Which of the following is not an endocrine gland?

Which internal organ plays a major role in keeping the glucose level in the blood regulated?