What type of weather is assosiated with continental polar air mass

Continental Polar Air Masses: cold temperatures and little moisture. Those who live in northern portions of the United States expect cold weather during the winter months. These conditions usually result from the invasion of cold arctic air masses that originate from the snow covered regions of northern Canada.

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answer; /// i believe the name your looking for is called (plaque)or check good luck

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation