<prompt> Shoest peptide is:Angiotensin-IVasopressinAngiotensin-IIAngiotensin-III  <response>: Shoest peptide is Angiotensin-III Made up of 7 amino acids, formed from Angiotensin-II after the removal of an amino acid from N-terminal Angiotensin III has same efficacy as Angiotensin II for the secretion of aldosterone. 