Name the hormone whose deficiency causes diabetes.

Name the endocrine gland which secretes hormone that maintains correct salt balance in the blood.

Name a hormone (other than adrenalin) secreted by adrenals.

Name the hormone which is required for the metamorphosis of larvae (tadpoles) into adult frogs.

Name the hormone which brings about metamorphosis in silk moth and changes caterpillar (larva) into adult silk moth.