The common ancestor of the Monarch and the Disturbed Tigerwing was partially resistant to cardenolides due to a mutation in amino acid position 2 of the -
pump, switching leucine to valine. A second mutation arose in the common ancestor of the Common Tiger and the Monarch that switched asparagine in position to 5 of the Na-K pump to histidine, making the butterfly almost completely resistant to cardenolides. Accept__ or Reject__