Carotenoids are the dominant pigment in autumn leaf coloration of about 15-30% of tree species. However, the reds, the purples, and their blended combinations that decorate autumn foliage usually come from another group of pigments in the cells called anthocyanins.
Canada is a constitutional monarchy with parliamentary democracy, as well as being a federation. Canada's particular Parliamentary system is referred to as a Westminster Model..This model was first developed by the British and is named after the Palace of Westminster, which houses the British Parliament.s a constitutional monarchy, Canada's Head of State is Queen Elizabeth II. The Queen is the head of the e â¦ xecutive, legislative, and judicial branches of government. She is federally represented by the Governor General of Canada, and advised by the Queen's Privy Council for Canada.
Canada is a federation, which means powers are shared between federal and provincial governments. Head of Government: Prime Minister. Queen Elizabeth II is Canada's official head of state, and is represented in Canada by the Governor General.anada is a federation, which means powers are shared between federal and provincial governments. Head of Government: Prime Minister. Queen Elizabeth II is Canada's official head of state, and is represented in Canada by the Governor General.