Cells create lots of waste products as they go through the different cellular processes. Which blood vessel is responsible for transporting these substances to the heart and then the kidneys?

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.