What political similarities are there among the nations of britain, australia, and new zealand?

They all have a prime minister run their country. None of these countries have a president. There are different reasons that the countries did this. New Zealand was trying to avoid having a dictator like Germany had. Britain originally had this system and originated the English politics. Australia and New Zealand are both part of the British Commonwealth.

Ithink the answer is  -the colony was represented by the house of burgesses.i hoped is